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INSUFFICIENT RELIABLE EVIDENCE to RATE

• Allergic rhinitis (hay fever). Oral agaricus mushroom has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in people with IgE-positive birch pollen allergy shows that taking a specific agaricus mushroom product (Andosan, Immunopharma) containing 82% agaricus mushroom, 15% Hericium erinaceus mushroom, and 3% maitake mushroom extracts, 60 mL daily for 7 weeks starting before the pollen season, reduces symptoms of allergic rhinitis and allergic asthma and decreases use of anti-allergy medications when compared with placebo. During the allergy season, birch-specific IgE levels were reduced, and basophils were less sensitive to allergen activation (102919).
• Cancer. Although there is interest in using oral agaricus mushroom for the treatment of various types of cancer, there is insufficient reliable information about the clinical effects of agaricus mushroom for this purpose. Cardiovascular disease (CVD).Although there is interest in using oral agaricus mushroom for the management of CVD and CVD risk factors, there is insufficient reliable information about the clinical effects of agaricus mushroom for this purpose.
• Chemotherapy-induced adverse effects. It is unclear if oral agaricus mushroom is beneficial for reducing adverse effects in patients undergoing chemotherapy treatment. Details: Preliminary clinical research in females with gynecologic cancers shows that taking an agaricus mushroom extract three times daily while receiving chemotherapy for 6 weeks might improve some of the adverse effects of chemotherapy, such as generalized weakness, decreased appetite, and emotional instability, when compared with chemotherapy alone (15404).
• Crohn Disease. It is unclear if oral agaricus mushroom is beneficial for Crohn disease. Details: Preliminary clinical research in patients with Crohn disease shows that taking an oral agaricus mushroom extract (AndoSan, ACE Co. Ltd.) 30 mL twice daily for 21 days does not improve fatigue, quality of life, or symptom severity when compared with placebo (94721).
• Diabetes. It is unclear if oral agaricus mushroom is beneficial for type 2 diabetes. Details: Preliminary clinical research in patients with type 2 diabetes shows that taking an agaricus mushroom extract 500 mg orally three times daily for 12 weeks, in combination with metformin and the sulfonylurea gliclazide, decreases insulin resistance and lowers fasting insulin levels more than metformin and gliclazide alone (15421).
• Hepatitis B. It is unclear if oral agaricus mushroom is beneficial for hepatitis B. Details: Preliminary clinical research in adults with chronic hepatitis B infection shows that taking agaricus mushroom extract 500 mg three times daily for 12 months decreases aspartate aminotransferase (AST) from 246 IU/L to 61 IU/L and alanine aminotransferase (ALT) from 151 IU/L to 46 IU/L (94719). However, these results are limited by small study size and the lack of a comparator group.
• Hyperlipidemia. Although there is interest in using oral agaricus mushroom for hyperlipidemia, there is insufficient reliable information about the clinical effects of agaricus mushroom for this condition.
• Multiple myeloma. It is unclear if oral agaricus mushroom is beneficial for multiple myeloma. Details: Preliminary clinical research in patients with multiple myeloma undergoing stem cell transplantation with high-dose chemotherapy shows that taking an agaricus mushroom extract (AndoSan, ACE Co. Ltd.) 60 mL orally daily for about 7 weeks during chemotherapy does not improve treatment response or overall survival when compared with placebo (94716).
• Osteoporosis. Although there is interest in using oral agaricus mushroom for osteoporosis, there is insufficient reliable information about the clinical effects of agaricus mushroom for this condition.
• Peptic ulcers. Although there is interest in using oral agaricus mushroom for peptic ulcers, there is insufficient reliable information about the clinical effects of agaricus mushroom for this condition.
• Ulcerative colitis. It is unclear if oral agaricus mushroom is beneficial for ulcerative colitis. Details: Preliminary clinical research in patients with symptomatic ulcerative colitis shows that taking an agaricus mushroom extract (AndoSan, ACE Co. Ltd.) 30 mL orally twice daily for 21 days improves fatigue, quality of life, and overall symptom scores when compared with placebo (94715). More evidence is needed to rate agaricus mushroom for these uses.

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POSSIBLY EFFECTIVE

• Anxiety. Small clinical studies suggest that oral ashwagandha might reduce anxiety. Details: One small clinical study in postal workers reporting moderate or severe anxiety shows that taking ashwagandha root (Swiss Herbals) 300 mg twice daily for 12 weeks, in combination with standard psychotherapy interventions, including dietary counseling, deep breathing exercise instruction, and a multivitamin, reduces anxiety scores when compared with standard psychotherapy interventions and placebo (19271). Additionally, two small clinical studies in adults with mild to moderate anxiety, depression, or stress show that taking a specific ashwagandha root extract standardized to contain 2.5% withanolides (Shagandha, Sabinsa Corp.) 500 mg with piperine 5 mg daily for 60-90 days reduces anxiety symptoms and perceived stress and improves sleep and quality of life when compared with placebo (113608,113609). However, another clinical study in young adults shows that taking a specific ashwagandha root and leaf extract (NooGandha, Specnova LLC) 225 mg or 400 mg daily for 30 days does not improve anxiety, stress, and depression scores when compared with placebo (107370).
• Generalized anxiety disorder (GAD). Oral ashwagandha may modestly improve symptoms of anxiety in patients with GAD. Details: Clinical practice guidelines from the World Federation of Societies of Biological Psychiatry (WFSBP) and the Canadian Network for Mood and Anxiety Treatments (CANMAT) provisionally recommend ashwagandha root extract at doses of 300-600 mg, standardized to 5% withanolides, daily as monotherapy or adjunctive therapy in patients with GAD. This recommendation is based on a review of three preliminary clinical trials with consistent results (110318). Two of these studies are described below. A small clinical trial in patients with GAD who are taking selective serotonin reuptake inhibitors (SSRIs) shows that taking ashwagandha 1 gram daily for 6 weeks reduces symptoms of anxiety by 48%, compared with a 27% reduction in patients taking placebo. Furthermore, by the end of treatment, 72% of patients taking ashwagandha were determined to have mild symptoms of GAD, compared with only 32% of those taking placebo (102687). Another preliminary clinical trial in patients aged 16 years and older with GAD shows that taking ashwagandha root powder granules 4 grams three times daily for 60 days moderately improves anxious mood in 58% of patients, compared with no moderate improvement in the placebo group. Mild improvement occurred in 82% of patients in the placebo group and 40% of patients in the ashwagandha group (90654).
• Insomnia. Oral ashwagandha may modestly improve sleep in patients with insomnia or non-restorative sleep. Details: A small meta-analysis in patients with insomnia and healthy patients shows that taking a specific ashwagandha root extract (KSM-66, Ixoreal Biomed) 250-600 mg daily or a specific root and leaf extract (Shoden, Arjuna Natural) 120 mg daily for 6-12 weeks modestly improves overall sleep, as well as sleep quality, sleep latency, total sleep time, wake time after sleep onset, and sleep efficiency, when compared with placebo. Effects were more pronounced in those with insomnia, with doses of at least 600 mg daily, and with treatment durations of at least 8 weeks (106784). These findings may be limited by heterogeneity of the included studies. In patients with non-restorative sleep, clinical research shows that taking a specific ashwagandha extract (Shoden, Arjuna Natural Private Ltd) 125 mg daily for 6 weeks increases sleep quality by 72%, compared with an improvement of 29% in patients taking placebo. Small to moderate improvements also occurred in total sleep time, sleep latency, and number of times awake (103476).
• Stress. Oral ashwagandha seems to help reduce stress and may also reduce stress-related weight gain. Details: A meta-analysis of seven small clinical studies in healthy adults, patients with chronic stress, or patients with psychiatric conditions shows that taking ashwagandha 240-1000 mg daily for 8-12 weeks improves stress when compared with placebo (109587). Clinical studies, some of which are included in the meta-analysis mentioned above, evaluating adults with chronic stress show that taking specific ashwagandha root extracts 240 mg daily (Shoden, Arjuna Natural Ltd.), 300 mg twice daily (KSM-66, Ixoreal Biomed), or 500 mg daily (Shagandha, Sabinsa Corp.) with piperine 5 mg for 60 days, or a specific slow-release capsule containing ashwagandha root extract (Prolanza) 300 mg daily for 90 days reduces perceived stress and cortisol levels when compared with baseline and placebo (90652,95617,101816,102682,107371,113608). Additionally, a small clinical study in adults with stress and a related comorbidity, such as anxiety or depression, shows that taking ashwagandha root and leaf extract (Sensoril, Kerry Group) 125-500 mg orally daily for 8 weeks improves stress scores in a dose-dependent manner when compared with placebo (114112). In contrast, a moderate-sized study in adults with overweight or mild obesity with moderate-to-high levels of stress and fatigue shows that taking ashwagandha root extract (Witholytin, Verdure Sciences Inc) 200 mg twice daily for 12 weeks reduces stress when compared to baseline, but not when compared with placebo (113611).In healthy college students, clinical research also shows that taking ashwagandha root extract 350 mg twice daily for 30 days improves qualitative perceptions of stress management, but not stress scores, when compared with placebo (109589,109590). Other clinical research shows that taking ashwagandha root extract 500 mg twice daily may prevent stress-related weight gain when compared with placebo (95617).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Aging. A small clinical study suggests that oral ashwagandha may modestly improve well-being, sleep, and alertness in elderly patients. Details: A small clinical trial in individuals aged 65-80 years shows that taking ashwagandha root extract (KSM-66, Ixoreal Biomed) 600 mg daily for 12 weeks improves overall well-being, sleep quality, and mental alertness by small to moderate amounts when compared with placebo (102684).
• Androgenic alopecia. It is unclear if topical ashwagandha is beneficial for androgenic alopecia. Details: A small clinical study in adults with mild to moderate hair loss, including androgenic alopecia, shows that applying ashwagandha root extract serum (KSM-66, Ixoreal Biomed) 1-2 drops to the scalp daily for 75 days reduces hair shedding and increases hair density, growth, and thickness when compared with placebo (113613).
• Antipsychotic-induced metabolic side effects. It is unclear if ashwagandha is beneficial for attenuating the metabolic side effects of antipsychotic agents. Details: One preliminary clinical trial shows that taking a specific ashwagandha extract (Cap Strelaxin, M/s Pharmanza Herbal Pvt. Ltd.) 400 mg three times daily for one month reduces serum triglycerides by 12% and fasting blood glucose by 15% when compared with baseline levels. Patients were taking atypical antipsychotics and had modestly elevated triglycerides and fasting blood glucose levels at baseline (90649). The validity of these findings is limited by the lack of a comparator group.
• Asthma. Although there has been interest in using oral ashwagandha for asthma, there is insufficient reliable information about the clinical effects of ashwagandha for this condition.
• Athletic performance. It is unclear if ashwagandha is beneficial for improving athletic performance. Details: A meta-analysis of four small clinical trials shows that taking ashwagandha increases aerobic capacity in athletes and non-athletes based on the measurement of maximum oxygen consumption. Effective doses ranged from 500-1000 mg daily for up to 12 weeks (102683). Another meta-analysis shows that taking ashwagandha in doses of 120-1250 mg daily, as a single dose or divided twice daily, for up to 6 months seems to improve muscle strength, speed, time to exhaustion, recovery time, and cardiorespiratory fitness in athletes and non-athletes (105824). However, the validity of this analysis is reduced by the lack of a control group, the varied training levels of the subjects, and the wide range of outcomes assessed. More research is needed to determine whether taking ashwagandha can improve athletic performance.
• Attention deficit-hyperactivity disorder (ADHD). Oral ashwagandha has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: In a preliminary clinical trial, children with ADHD were given a combination herbal extract formula (Nurture & Clarity), containing ashwagandha, white peony root, gotu kola, blue-green algae, bacopa, and sage, 3 mL three times daily for 4 months. Measures of attention, cognition, and impulse control improved significantly in children receiving ashwagandha when compared with placebo (19272). The dose of ashwagandha in the combination product was not reported, and the effect of ashwagandha alone in ADHD is unclear.
• Back pain. Although there has been interest in using oral or topical ashwagandha for back pain, there is insufficient reliable information about the clinical effects of ashwagandha for this condition.
• Bipolar disorder. It is unclear if oral ashwagandha is beneficial for improving cognitive function in adults with bipolar disorder. Details: Clinical research shows that taking ashwagandha extract (Sensoril, Natreon, Inc.) 250 mg daily for 1 week and then 250 mg twice daily for 7 weeks, improves some, but not all, measures of cognition by a small-to-moderate amount when compared with placebo (90653).
• Bronchitis. Although there has been interest in using oral ashwagandha for bronchitis, there is insufficient reliable information about the clinical effects of ashwagandha for this condition.
• Cerebellar ataxia. It is unclear if oral ashwagandha is beneficial for improving balance in patients with cerebellar ataxia. Details: A small, open-label study evaluating ashwagandha 500 mg three times daily in combination with Ayurvedic therapy for one month showed improvement in balance indices in subjects with cerebellar ataxia when compared with baseline (19273). The validity of this finding is limited by the lack of a comparator group. Additionally, it is unclear if this effect is due to ashwagandha, other ingredients, or the combination.
• Chemotherapy-related fatigue. Evidence is limited to one small clinical study in patients with breast cancer. Details: In preliminary clinical research in patients with breast cancer, taking ashwagandha powdered root extract 2 grams (Himalaya Drug Co) three times daily through six cycles of chemotherapy decreases chemotherapy-related fatigue when compared with no treatment. Fatigue scores were 16% to 52% higher in the control group when compared to the ashwagandha group (90651).
• Chronic obstructive pulmonary disease (COPD). It is unclear if oral ashwagandha is beneficial in patients with COPD. Details: A small clinical study in patients with stable COPD shows that taking ashwagandha root extract 250 mg twice daily for 12 weeks, along with conventional therapy, improves measures of lung function and exercise tolerance, but not quality of life, when compared with conventional therapy alone (109588).
• Cognitive function. Although there has been interest in using oral ashwagandha for cognitive function, there is insufficient reliable information about the clinical effects of ashwagandha for this condition.
• Constipation. Oral ashwagandha has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A very small clinical study in adults with constipation shows that taking a combination product containing ashwagandha root and ambrette fruit extracts 300 mg or 500 mg daily for 14 days improves bowel movement frequency and abdominal, rectal, and stool symptoms when compared with placebo (112114). Additionally, a moderate-sized clinical study in adults with functional constipation shows that using the same combination of ashwagandha and ambrette 300 mg or 500 mg daily for 60 days moderately improves constipation symptom scores and bowel movement scores when compared with placebo (114115). It is unclear if these effects are due to ashwagandha, ambrette, or the combination.
• Coronavirus disease 2019 (COVID-19). Oral ashwagandha has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in adults hospitalized with COVID-19 shows that taking a specific combination product, (Artovid-20, Bioved Pharmaceuticals) containing ashwagandha, ginger, turmeric, and Boswellia, 1,776 mg orally twice daily for 14 days shortens the duration of symptoms by 0.9 days when compared with placebo. Taking the combination product also modestly reduced the severity ratings of some symptoms, such as sore throat and cough, however, these improvements are unlikely to be clinically relevant (109899). Another small clinical study in adults with mild to moderate COVID-19 shows that taking ashwagandha 500 mg and ginger 1000 mg twice daily for 15 days reduces time to recovery by around 6 days and increases the rate of clinical cure 14-fold and 2.6-fold at days 5 and 7, respectively, when compared with a control. However, taking this combination does not appear to improve the proportion of patients with a negative COVID-19 test, viral clearance, serum antibodies, chest findings, or disease progression when compared with control (112094). The validity of these findings is limited by a lack of blinding, and the study may have been inadequately powered to detect a difference between groups. Other clinical research in adults hospitalized with mild to moderate COVID-19 shows that taking a specific combination product (Coroprotect) containing ashwagandha, pomegranate, turmeric, bacopa, licorice, and other ingredients, twice daily for 10 days improved cough, breathlessness, and fatigue symptoms when compared with placebo (114114). It is unclear if any effects are due to ashwagandha, other ingredients, or the combination.
• Depression. It is unclear if oral ashwagandha is beneficial for depression. Details: A small clinical study in adults with mild to moderate depression, anxiety, or stress shows that taking a specific ashwagandha root extract standardized to contain 2.5% withanolides (Shagandha, Sabinsa) 500 mg with piperine 5 mg daily for 90 days reduces the severity of depressive symptoms, improves sleep and quality of life, and increases serum serotonin levels when compared with placebo (113609).
• Diabetes. It is unclear if oral ashwagandha is beneficial for type 2 diabetes. Details: In patients with type 2 diabetes, preliminary clinical research shows that ashwagandha 3 grams daily for 30 days decreases blood glucose to a degree similar to oral hypoglycemic drugs (19274). However, this study did not compare ashwagandha directly to a group taking oral hypoglycemic drugs.
• Fatigue. It is unclear if oral ashwagandha is beneficial for fatigue. Details: A moderate-sized clinical study in adults with overweight or obesity and moderate-to-high levels of fatigue and stress shows that taking ashwagandha root extract (Witholytin, Verdure Sciences Inc.) 200 mg twice daily for 12 weeks reduces self-reported fatigue when compared with placebo (113611).
• Fibromyalgia. Although there has been interest in using oral ashwagandha for fibromyalgia, there is insufficient reliable information about the clinical effects of ashwagandha for this condition.
• Hiccups. Although there has been interest in using oral ashwagandha for hiccups, there is insufficient reliable information about the clinical effects of ashwagandha for this condition.
• Hypercholesterolemia. It is unclear if ashwagandha is beneficial for hypercholesterolemia. Details: A very small clinical study in subjects with hypercholesterolemia shows that ashwagandha 3 grams daily for 30 days decreases serum cholesterol, triglyceride, low-density lipoprotein (LDL) cholesterol, and very low-density lipoprotein (VLDL) cholesterol levels when compared with baseline (19274). The validity of these findings is limited by the lack of a comparator group.
• Hypothyroidism. It is unclear if ashwagandha is beneficial for hypothyroidism. Details: Preliminary clinical research in adults with subclinical hypothyroidism shows that taking a specific ashwagandha root extract (KSM-66, Ixoreal Biomed) 300 mg twice daily for 8 weeks increases triiodothyronine (T3) and thyroxine (T4) levels by 42% and 20%, respectively, and reduces serum TSH levels by 17% from baseline. These changes are significant when compared with placebo (97292). However, the effects of ashwagandha on thyroid hormone levels in patients with overt hypothyroidism, or in patients taking prescription thyroid hormones, is unknown.
• Infertility. Although there has been interest in using oral ashwagandha for infertility in females, there is insufficient reliable information about the clinical effects of ashwagandha for this condition.
• Male infertility. It is unclear if oral ashwagandha is beneficial for male infertility. Details: Preliminary clinical research in males with infertility shows that taking ashwagandha root powder for approximately 3 months modestly improves hormone levels, as well as sperm count and motility, when compared with baseline (19275,90650). The validity of these findings is limited by the lack of a comparator group. One study used a specific ashwagandha root extract (KSM-66 Ashwagandha, Ixoreal Biomed) 225 mg three times daily; another study provided doses of 5 grams daily (19275,90650).
• Menopausal symptoms. Oral ashwagandha may be beneficial for menopausal symptoms. Details: A small clinical study in healthy adults in perimenopause shows that taking a specific ashwagandha root extract (KSM-66, Ixoreal Biomed) 300 mg twice daily for 8 weeks improves menopausal symptom severity by 24%, compared with 11% in those receiving placebo. Quality of life and hot flashes also were improved in those taking ashwagandha (106785).
• Obsessive-compulsive disorder (OCD). It is unclear if ashwagandha is beneficial for OCD. Details: Preliminary clinical research shows that taking ashwagandha root extract 120 mg after meals for 6 weeks, in conjunction with prescribed selective-serotonin reuptake inhibitors (SSRIs), might reduce OCD symptom severity when compared with prescribed SSRIs alone. The dose was initiated at 30 mg daily and increased by 30 mg every 4 days. Although OCD scores were significantly reduced when compared with placebo, it should be noted that scores were already significantly lower in the placebo group at baseline (95618).
• Osteoarthritis. Oral ashwagandha has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: In patients with osteoarthritis, taking a specific combination supplement, containing ashwagandha 450 mg, Ayurvedic zinc complex 50 mg, guggul 100 mg, and turmeric 50 mg (Articulin-F) two capsules three times daily for 3 months reduces symptoms of pain and swelling when compared with placebo. However, there were no radiological improvements (19276). It is unclear if this effect is due to ashwagandha, other ingredients, or the combination.
• Parkinson disease. Oral ashwagandha has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: In patients with Parkinson disease, a small clinical study shows that taking a product containing ashwagandha 14.5 grams, cowhage 4.5 grams, Hyoscyamus reticulantus 0.75 grams, and Sida cordifolia 14.5 grams in lukewarm milk twice daily for 56 days improves symptoms like tremor, stiffness, and cramps when compared with baseline. The therapy followed 28 days of cleansing or eliminative therapy using Ayurvedic remedies (6899). The validity of these findings is limited by the lack of a comparator group. Also, it is unclear if these effects are due to ashwagandha, other ingredients, or the combination. Cowhage contains levodopa, which may contribute to any benefit seen with this combination product.
• Psychological well-being. It is unclear if oral ashwagandha is beneficial for improving psychological well-being in college students. Details: A small clinical study in healthy college students shows that taking ashwagandha root extract 350 mg twice daily for 30 days improves perceptions of well-being, including improvements in energy, mental clarity, food cravings, and sleep quality, when compared with placebo. Qualitative analysis also suggests these students had improvements in stress management, but stress scores were not reduced when compared with placebo (109589,109590).
• Rheumatoid arthritis (RA). It is unclear if ashwagandha is beneficial for improving symptoms of RA. Details: Preliminary clinical research shows that taking ashwagandha powder 5 grams twice daily for 3 weeks, followed by 4 weeks of sidh makardhwaj (a mixture of gold, mercury, and sulfur) 100 mg with honey daily, modestly improves symptoms in about 50% of males and 60% of females with RA when compared with baseline (95620). The lack of a control group limits the validity of this finding. Additionally, the effect of ashwagandha powder alone is unclear.
• Sexual dysfunction. Small clinical studies suggest that oral ashwagandha root extract may help improve sexual arousal and sexual desire in some females and males with sexual dysfunction. Details: Two, small clinical studies in adult females with sexual dysfunction show that taking ashwagandha root extract (KSM-66, Ixoreal Biomed) 300 mg twice daily with food for 8 weeks in conjunction with or without counseling increases the number of successful sexual encounters and improves orgasms, satisfaction, lubrication, and arousal when compared with placebo or counseling alone (95619,110492). Also, a small clinical study in adult males with low sexual desire shows that taking the same ashwagandha root extract 300 mg twice daily after meals for 8 weeks improves subjective sexual functioning scores, including measures of sexual arousal, sexual desire, sexual behavior, and orgasm, when compared with placebo (109586).
• Smoking cessation. Oral ashwagandha has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A moderate-sized clinical study in adults with a history of smoking 5 or more cigarettes daily for at least 3 years shows that taking a specific combination product containing ashwagandha 100 mg, Indian gooseberry, tribulus, bacopa, Albizia lebbeck, licorice, clove, ginger, cowhage, holy basil, and turmeric (Smotect, Smotect India) daily for 3 months reduces the number of cigarettes smoked daily and levels of alveolar carbon monoxide and carboxyhemoglobin but does not improve lung capacity when compared with placebo (112115). It is unclear if these effects are due to ashwagandha, other ingredients, or the combination.
• Tuberculosis. Although there has been interest in using oral ashwagandha for tuberculosis, there is insufficient reliable information about the clinical effects of ashwagandha for this condition.
• Vitiligo. Although there has been interest in using oral ashwagandha for vitiligo, there is insufficient reliable information about the clinical effects of ashwagandha for this condition.
• Wrinkled skin. It is unclear if topical ashwagandha is beneficial in individuals with wrinkled skin. Details: A small clinical study in healthy adults with photoaged skin shows that applying ashwagandha root extract 8% lotion daily for 60 days improves physician-rated scores for skin wrinkles, hydration, brightness, tone, and pigmentation and improves other measures of skin elasticity and hydration when compared with placebo. However, changes in melanin content did not differ between treatment groups (111538).
• Wound healing. Although there has been interest in using topical ashwagandha for healing of skin ulcers and skin sores, there is insufficient reliable information about the clinical effects of ashwagandha for this condition. More evidence is needed to rate ashwagandha for these uses.

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POSSIBLY EFFECTIVE

• Sexual desire. Oral Eurycoma longifolia seems to improve sexual desire.

POSSIBLY INEFFECTIVE

• Athletic performance. Oral Eurycoma longifolia does not seem to improve athletic performance in healthy persons. Details: One small study in recreational male athletes shows that taking Eurycoma longifolia 150 mg daily for 7 days before, plus one hour prior to, an endurance running trial does not increase endurance when compared with placebo (49133). Furthermore, a larger study in healthy males shows that taking a specific brand of Eurycoma longifolia extract (Physta, Biotropics Malaysia Berhad) 300 mg daily for 12 weeks does not improve physical fitness when compared with placebo (93490).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Age-related testosterone deficiency. It is unclear if oral Eurycoma longifolia is beneficial for increasing testosterone levels in older males. Details: A clinical study in older adult males with testosterone levels below 300 ng/dL shows that taking a specific water extract of Eurycoma longifolia roots (Physta; Biotropics Malaysia) 100-200 mg daily with breakfast for 12 weeks modestly increases total testosterone levels and improves Aging Male Symptoms (AMS) and Fatigue Severity Scale (FSS) scores when compared with placebo. Improvements in testosterone are observed at 4 and 12 weeks in the 200-mg and 100-mg groups, respectively; improvements in AMS and FSS scores are observed as early as week 2 in both groups (108451). Daily food intake, exercise frequency, and other lifestyle details were not reported, limiting the validity of these findings. Another small clinical study in adults with late-onset hypogonadism shows that taking a water-based extract of Eurycoma longifolia 200 mg daily for one month seems to increase testosterone levels by about 2.6 nmol/L and improves Aging Male Symptoms (AMS) scores when compared to baseline (17924). The validity of these findings is limited by the lack of a comparator group. A meta-analysis of 5 mostly small clinical studies in healthy adult males and males with hypogonadism shows that taking Eurycoma longifolia 100-600 mg daily for 2-12 weeks modestly increases serum testosterone levels when compared with placebo (112185). However, the interpretation of this finding is limited by the heterogeneity of the included studies that utilized various dosing regimens.
• Back pain. Although there is interest in using oral Eurycoma longifolia for back pain, there is insufficient reliable information about the clinical effects of Eurycoma longifolia for this condition.
• Cancer. Although there is interest in using oral Eurycoma longifolia for cancer, there is insufficient reliable information about the clinical effects of Eurycoma longifolia for this condition.
• Diabetes. Although there is interest in using oral Eurycoma longifolia for diabetes, there is insufficient reliable information about the clinical effects of Eurycoma longifolia for this condition.
• Dyspepsia. Although there is interest in using oral Eurycoma longifolia for dyspepsia, there is insufficient reliable information about the clinical effects of Eurycoma longifolia for this condition.
• Erectile dysfunction (ED). It is unclear if oral Eurycoma longifolia is beneficial for ED. Details: A meta-analysis of two small clinical studies suggests that Eurycoma longifolia has no overall effect on erectile function based on the International Index of Erectile Function (IIEF)-5 scale (93491). However, only one of the studies in the meta-analysis included persons with known ED. This small study found that taking Eurycoma longifolia 200 mg in combination with Persicaria minor 100 mg for 12 weeks may modestly improves erectile function on Sexual Health Inventory for Men (SHIM) and Erection Hardness Scale (EHS) when compared with placebo. However, improvements in erectile function per the IIEF-5 scale were lacking (93496). Additionally, it is unclear if these effects were due to Eurycoma longifolia, Persicaria minor, or the combination.
• Hypertension. Although there is interest in using oral Eurycoma longifolia for hypertension, there is insufficient reliable information about the clinical effects of Eurycoma longifolia for this condition.
• Intestinal parasite infection. Although there is interest in using oral Eurycoma longifolia for intestinal parasite infection, there is insufficient reliable information about the clinical effects of Eurycoma longifolia for this purpose.
• Malaria. Although there is interest in using oral Eurycoma longifolia for malaria, there is insufficient reliable information about the clinical effects of Eurycoma longifolia for this condition.
• Male Infertility. It is unclear if oral Eurycoma longifolia is beneficial for improving male infertility. Details: Preliminary clinical research shows that taking a specific formulation of Eurycoma longifolia (Physta, Biotropics Malaysia Berhad) 200-300 mg daily for 3-9 months results in higher semen volume and sperm concentration, and also improves the percentage of normal sperm morphology and sperm motility, when compared with baseline (18138,93490). In one study, 15% of patients had a spontaneous pregnancy after treatment (18138). The validity of these findings is limited by the lack of a comparator group.
• Menopausal symptoms. Oral Eurycoma longifolia has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in peri-menopausal patients shows that taking a combination product (Nu-femme) containing the standardized ingredients Eurycoma longifolia (Physta, Biotropics Malaysia) 50 mg and Labisia pumila (SLP+, Biotropics Malaysia) daily for 24 weeks seems to reduce hot flashes and other menopausal symptoms when compared to baseline. However, the improvements were no better than placebo (105085).
• Muscle strength. It is unclear if oral Eurycoma longifolia is beneficial for improving muscle strength. Details: One small study in healthy male adults shows that taking Eurycoma longifolia 100 mg daily for 5 weeks in addition to participating in an intense strength training program increases muscle mass and strength when compared with those participating in strength training alone (49134). Another small study in physically active seniors shows that taking Eurycoma longifolia extract (Physta, Biotropics Malaysia Berhad) 400 mg daily for 5 weeks increases muscular force by around 15% when compared to baseline (97312). However, not all research has been positive. One small study in young, healthy males shows that taking Eurycoma longifolia 200 mg daily for 8 weeks in addition to a resistance training program does not increase isokinetic knee muscle strength or peak power when compared with resistance training alone (103619).
• Obesity. Oral Eurycoma longifolia has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A clinical study in adults with obesity following a reduced-calorie diet and performing 30-60 minutes of daily, light-intensity exercise, shows that a specific oral product (CitruSlim; NHR Science) containing Eurycoma longifolia root extract 17% and bergamot extract 83%, taken as 200 mg or 400 mg daily as three divided doses before meals for 112 days, decreases body mass index by 3.3% and 3.2%, respectively, but does not impact lipid parameters or waist-to-hip ratio, when compared with diet and exercise alone (108452). It is unclear if this effect is due to Eurycoma longifolia, bergamot, or the combination.
• Osteoporosis. Although there is interest in using oral Eurycoma longifolia for osteoporosis, there is insufficient reliable information about the clinical effects of Eurycoma longifolia for this condition.
• Syphilis. Although there has been interest in using oral Eurycoma longifolia for syphilis, there is insufficient reliable information about the clinical effects of Eurycoma longifolia for this condition. More information is needed to rate Eurycoma longifolia for these uses.

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POSSIBLY SAFE ...when used orally and appropriately. Agaricus mushroom extract has been safely used in doses up to 1500 mg daily for up to 12 months (15404,15421,94715,94716,94719,94721). A specific agaricus lyophilized powder product (Sen-Sei-Ro Powder Gold, Kyowa Wellness Co., Ltd.) has been safely used in doses up to 5.4 grams daily for 6 months (17185).

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

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POSSIBLY SAFE ...when used orally and appropriately, short-term. Ashwagandha has been used with apparent safety in doses of up to 1250 mg daily for up to 6 months (3710,11301,19271,90649,90652,90653,97292,101816,102682,102683) (102684,102685,102687,103476,105824,109586,109588,109589,109590). ...when used topically. Ashwagandha lotion has been used with apparent safety in concentrations up to 8% for up to 2 months (111538).

PREGNANCY: LIKELY UNSAFE
when used orally. Ashwagandha has abortifacient effects (12).

LACTATION:
Insufficient reliable information available; avoid using.

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POSSIBLY SAFE ...when used orally and appropriately in medicinal amounts. Eurycoma longifolia has been safely used in doses of 400 mg daily for up to 3 months and in doses of 200 mg daily for up to 9 months (17924,18138,93490,97312).

POSSIBLY UNSAFE ...when used orally in excessive amounts, long-term. There are some concerns about the safety of Eurycoma longifolia due to contamination with mercury and lead or adulteration with sildenafil (17925,17926,17927,18137,49087,93494). Some research shows that 36% and 17% of Eurycoma longifolia preparations from Malaysia contain high levels of mercury and lead, respectively (17925,17926,17927,49087). While safety issues related to these contaminants have not been reported in humans, taking high doses of Eurycoma longifolia long-term might cause symptoms of heavy metal poisoning or sildenafil-related adverse effects.

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using. Animal research suggests that there are no negative effects of Eurycoma longifolia on the offspring (93493). However, research in humans is lacking.

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ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking agaricus mushroom with antidiabetes drugs might increase the risk of hypoglycemia.  Details In one clinical study in patients with type 2 diabetes who are stabilized on conventional oral hypoglycemic agents, 3 of 29 patients taking an agaricus mushroom extract 500 mg three times daily for 12 weeks reported hypoglycemia, compared to one of 29 patients in the placebo group (15421).

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ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = B Theoretically, taking ashwagandha with antidiabetes drugs might increase the risk of hypoglycemia.  Details There is preliminary clinical evidence suggesting that ashwagandha might lower blood glucose levels. Theoretically, ashwagandha might have additive effects when used with antidiabetes drugs and increase the risk of hypoglycemia (19274,90649,102685).

ANTIHYPERTENSIVE DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking ashwagandha with antihypertensive drugs might increase the risk of hypotension.  Details Animal research suggests that ashwagandha might lower systolic and diastolic blood pressure (19279). Theoretically, ashwagandha might have additive effects when used with antihypertensive drugs and increase the risk of hypotension.

BENZODIAZEPINES Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking ashwagandha might increase the sedative effects of benzodiazepines.  Details There is preliminary evidence that ashwagandha might have an additive effect with diazepam (Valium) and clonazepam (Klonopin) (3710). This may also occur with other benzodiazepines.

CNS DEPRESSANTS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking ashwagandha might increase the sedative effects of CNS depressants.  Details Ashwagandha seems to have sedative effects. Theoretically, this may potentiate the effects of barbiturates, other sedatives, and anxiolytics (3710).

CYTOCHROME P450 1A2 (CYP1A2) SUBSTRATES Interaction Rating = Minor Be watchful with this combination. Severity = Mild •  Occurrence = Possible •  Level of Evidence = D Theoretically, ashwagandha might decrease the levels and clinical effects of CYP1A2 substrates.  Details In vitro research shows that ashwagandha extract induces CYP1A2 enzymes (111404).

CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES Interaction Rating = Minor Be watchful with this combination. Severity = Mild •  Occurrence = Possible •  Level of Evidence = D Theoretically, ashwagandha might decrease the levels and clinical effects of CYP3A4 substrates.  Details In vitro research shows that ashwagandha extract induces CYP3A4 enzymes (111404).

HEPATOTOXIC DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking ashwagandha with hepatotoxic drugs might increase the risk of liver damage.  Details Ashwagandha has been linked to cases of acute hepatitis, liver failure, hepatic encephalopathy, autoimmune hepatitis, the need for liver transplantation, and death due to liver failure (102686,107372,110490,110491,111533,111535,112111,113610).

IMMUNOSUPPRESSANTS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking ashwagandha might decrease the effects of immunosuppressants.  Details Ashwagandha has demonstrated immunostimulant effects in humans (3710,3711,4114,11301,106786). Animal research has shown that ashwagandha can attenuate the immunosuppression caused by cyclophosphamide (3711,4114).

THYROID HORMONE Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = B Ashwagandha might increase the effects and adverse effects of thyroid hormone.  Details Concomitant use of ashwagandha with thyroid hormones may cause additive therapeutic and adverse effects. Preliminary clinical research and animal studies suggest that ashwagandha boosts thyroid hormone synthesis and secretion (19281,19282,97292). In one clinical study, ashwagandha increased triiodothyronine (T3) and thyroxine (T4) levels by 41.5% and 19.6%, respectively, and reduced serum TSH levels by 17.4% from baseline in adults with subclinical hypothyroidism (97292).

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CYTOCHROME P450 1A2 (CYP1A2) SUBSTRATES Interaction Rating = Minor Be watchful with this combination. Severity = Insignificant •  Occurrence = Possible •  Level of Evidence = D Theoretically, Eurycoma longifolia might increase levels CYP1A2 substrates.  Details In vitro research suggests that methanolic Eurycoma longifolia root extract weakly inhibits CYP1A2 enzymes (93489). This effect has not been reported in humans.

CYTOCHROME P450 2A6 (CYP2A6) SUBSTRATES Interaction Rating = Minor Be watchful with this combination. Severity = Insignificant •  Occurrence = Possible •  Level of Evidence = D Theoretically, Eurycoma longifolia might increase levels of CYP2A6 substrates.  Details In vitro research suggests that methanolic Eurycoma longifolia root extract weakly inhibits CYP2A6 enzymes (93489). This effect has not been reported in humans.

CYTOCHROME P450 2C19 (CYP2C19) SUBSTRATES Interaction Rating = Minor Be watchful with this combination. Severity = Insignificant •  Occurrence = Possible •  Level of Evidence = D Theoretically, Eurycoma longifolia might increase levels of CYP2C19 substrates.  Details In vitro research suggests that methanolic Eurycoma longifolia root extract weakly inhibits CYP2C19 enzymes (93489). This effect has not been reported in humans.

PROPRANOLOL (Inderal) Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = A Eurycoma longifolia can reduce the levels and clinical effects of propranolol.  Details A small clinical study in healthy persons shows that taking a single dose of a water-based Eurycoma longifolia extract 200 mg, in combination with a single dose of propranolol 80 mg, reduces the propranolol area under the curve (AUC) by 29%, reduces the peak concentration by 42%, and increases time to peak concentration by 86% when compared with control. Since the elimination half-life of propranolol did not change, it seems that Eurycoma longifolia alters the kinetics of propranolol by decreasing its absorption in the gut, and not by altering its metabolism (17923). It is not known if separating administration will prevent this interaction.

TESTOSTERONE Interaction Rating = Minor Be watchful with this combination. Severity = Mild •  Occurrence = Possible •  Level of Evidence = D Theoretically, Eurycoma longifolia may further increase levels of testosterone.  Details A clinical study in aging males with testosterone levels below 300 ng/dL shows that taking a specific water extract of Eurycoma longifolia roots (Physta; Biotropics Malaysia) 100-200 mg daily with breakfast for 12 weeks increases total testosterone levels by 8% to 11% when compared with placebo (108451). It is unclear whether this increase would occur in individuals with normal testosterone levels.

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General ...Orally, agaricus mushroom is generally well tolerated.
Most Common Adverse Effects:
Orally: Abdominal discomfort, diarrhea, and nausea.
Serious Adverse Effects (Rare):
Orally: Allergic reactions, hepatotoxicity, interstitial lung disease (ILD).

Gastrointestinal ...In one clinical trial, mild gastrointestinal side effects such as nausea, diarrhea, and abdominal discomfort were reported in 6 of 78 patients taking a specific agaricus powder product , Ltd.) 1.8-5.4 grams orally daily for 60 days. The causal relationship between this agaricus mushroom product and the associated gastrointestinal adverse effect was determined to be possible or probable in each case (17185).

Hepatic ...Three cases of severe hepatotoxicity have been reported in females with ovarian or breast cancer receiving chemotherapy who also took agaricus mushroom supplements. Two of the patients had increases in liver function tests a few days after starting agaricus mushroom, which then progressed rapidly to fatal, fulminant hepatitis. One of these patients was also an asymptomatic carrier of hepatitis B virus. In the third case, liver function improved when agaricus mushroom was stopped, worsened when it was restarted, and then recovered fully when the supplement was stopped permanently (16458).

Immunologic ...An allergic reaction has been reported in a female who took a specific agaricus powder product , Ltd.) 1.8 grams daily by mouth for 2 months. The patient developed an urticarial papular rash which resolved when the product was discontinued (17185). Allergic contact cheilitis was also reported in a patient taking a homemade agaricus mushroom extract orally. The reaction resolved upon discontinuation of agaricus mushroom (94720).

Pulmonary/Respiratory ...There is one case report of interstitial lung disease associated with the use of agaricus mushroom for approximately one month in a male with pancreatic ductal adenocarcinoma being treated with gemcitabine. Drug-induced lymphocyte stimulation test (DLST) was positive for agaricus mushroom extract and not gemcitabine. Pneumonitis improved upon discontinuation of agaricus mushroom (108313).

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General ...Orally, ashwagandha seems to be well-tolerated. Topically, no adverse effects have been reported. However, a thorough evaluation of safety outcomes has not been conducted.
Most Common Adverse Effects:
Orally: Diarrhea, gastrointestinal upset, nausea, and vomiting. However, these adverse effects do not commonly occur with typical doses.
Serious Adverse Effects (Rare):
Orally: Some case reports raise concerns about acute hepatitis, acute liver failure, hepatic encephalopathy, the need for liver transplantation, and death due to liver failure with ashwagandha treatment.

Dermatologic ...Orally, dermatitis has been reported in three of 42 patients in a clinical trial (19276).

Endocrine ...A case report describes a 73-year-old female who had taken an ashwagandha root extract (unspecified dose) for 2 years to treat hypothyroidism which had been previously managed with levothyroxine. The patient was diagnosed with hyperthyroidism after presenting with supraventricular tachycardia, chest pain, tremor, dizziness, fatigue, irritability, hair thinning, and low thyroid stimulating hormone (TSH) levels. Hyperthyroidism resolved after discontinuing ashwagandha (108745). Additionally, an otherwise healthy adult who was taking ashwagandha extract orally for 2 months experienced clinical and laboratory-confirmed thyrotoxicosis. Thyrotoxicosis resolved 50 days after discontinuing ashwagandha, without other treatment (114111).

Gastrointestinal ...Orally, large doses may cause gastrointestinal upset, diarrhea, and vomiting secondary to irritation of the mucous and serous membranes (3710). When taken orally, nausea and abdominal pain (19276,110490,113609) and gastritis and flatulence (90651) have been reported.

Genitourinary ...In one case report, a 28-year-old male with a decrease in libido who was taking ashwagandha 5 grams daily over 10 days subsequently experienced burning, itching, and skin and mucous membrane discoloration of the penis, as well as an oval, dusky, eroded plaque (3 cm) with erythema on the glans penis and prepuce (32537).

Hepatic ...Orally, ashwagandha in doses of 154 mg to 20 grams daily has played a role in several case reports of cholestatic, hepatocellular, and mixed liver injuries. In most of these cases, other causes of liver injury were excluded, and liver failure did not occur. Symptoms included jaundice, pruritus, malaise, fatigue, lethargy, weight loss, nausea, diarrhea, abdominal pain and distension, stool discoloration, and dark urine. Symptom onset was typically 5-180 days from first intake, although in some cases onset occurred after more than 12 months of use (102686,107372,110490,110491,111533,111535,112111,113610,114113). Laboratory findings include elevated aspartate transaminase (AST), alanine transaminase (ALT), alkaline phosphatase, serum bilirubin, and international normalized ratio (INR) (112111,113610,114113). In most cases, liver enzymes normalized within 1-5 months after discontinuation of ashwagandha (102686,107372,110491,111535,112111,114113). However, treatment with corticosteroids, lactulose, ornithine, ursodeoxycholic acid, and plasmapheresis, among other interventions, was required in one case (111533). Rarely, use of oral ashwagandha has been reported to cause hepatic encephalopathy, liver failure requiring liver transplantation, and acute-on-chronic liver failure resulting in death (110490,113610).

Neurologic/CNS ...Orally, ashwagandha has been reported to cause drowsiness (110492,113609). Headache, neck pain, and blurry vision have been reported in a 47-year-old female taking ashwagandha, cannabis, and venlafaxine. Imaging over the course of multiple years and hospital admissions indicated numerous instances of intracranial hemorrhage and multifocal stenosis of intracranial arteries, likely secondary to reversible cerebral vasoconstriction syndrome (RCVS) (112113). It is unclear whether the RCVS and subsequent intracranial hemorrhages were precipitated by ashwagandha, cannabis, or venlafaxine.

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General ...Orally, Eurycoma longifolia seems to be well tolerated.
Most Common Adverse Effects:
Orally: None reported.

Endocrine ...Some research in both humans and animals suggests that Eurycoma longifolia might increase testosterone levels (17924). If testosterone levels are increased beyond the normal range, there is risk of testosterone-related side effects which could include acne, insulin resistance, hepatotoxicity, and others.

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