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Yoh5.0
Yohimbe Research
Too few graded studies
19 peer-reviewed studies
What the evidence says
Too few graded studies
Yohimbe doesn't have enough studies with structured effect-size data yet to pool a verdict. Browse the studies below for individual findings.
Most evidence is from high-quality meta-analyses and randomised trials published 1995–2025.
Based on 19 studies · 1 meta-analysis · 6 RCTs
Confidence
Moderate confidence
By outcome
Men's vitalityModerate improvement in erectile function (strongest for standardized yohimbine, not raw bark) · 2-8 weeks
Mostly mechanism / observational5 studies
Cognitive function
Too few graded studies4 studies
Endurance & exercise performance
Too few graded studies2 studies
Heart & blood pressure
Too few graded studies2 studies
Muscle strength & power
Too few graded studies1 study
Recovery
Too few graded studies1 study
Energy & fatigue
Too few graded studies1 study
Safety profile
Too few graded studies1 study
Active research area
12 studies in the last 5 years · Latest meta-analysis: 1998
199520102025
1Review2024
In plain English: This review examines the multifaceted nature of yohimbine, delving into both its promising therapeutic potential and the associated risks.
Nowacka A, Śniegocka M, Śniegocki M, Ziółkowska E, Bożiłow D, Smuczyński W. · International journal of molecular sciences (2024)
Initially recognized for its purported aphrodisiac properties, yohimbine has been investigated for a wide range of applications, including sports or the treatment of erectile dysfunction and metabolic disorders.
However, toxicological concerns exist, particularly at higher doses.
Ongoing researches help to fully assess yohimbine's efficacy and safety profile and to explore strategies for enhancing its bioavailability and reducing toxicity.
In plain English: The meta-analysis demonstrated that yohimbine is superior to placebo in the treatment of erectile dysfunction (odds ratio 3.85, 95% confidence interval 6.67 to 2.22). Serious adverse reactions were infrequent and reversible.
Ernst E et al. · The Journal of urology (1998)
Yohimbine significantly more effective than placebo for ED
Adverse events were mostly mild and reversible
Supports yohimbine (the isolated alkaloid) for ED specifically
In plain English: A comprehensive literature review on botanical medicine and natural products used for treatment of erectile dysfunction was successfully conducted.
Sin VJ et al. · Sexual medicine reviews (2021)
A comprehensive literature review on botanical medicine and natural products used for treatment of erectile dysfunction was successfully conducted.
Although medicinal plants serve as a potential source of lead compounds for erectile dysfunction drugs, further studies are warranted to further evaluate their efficacy and safety.
In plain English: Our results suggest that noradrenergic stimulation through yohimbine does not affect (non-spatial) working memory in healthy human participants.
Wanke N et al. · Psychopharmacology (2020)
Our results suggest that noradrenergic stimulation through yohimbine does not affect (non-spatial) working memory in healthy human participants.
In plain English: The presence of associated clinical conditions, such as supine hypertension, heart failure, postprandial hypotension, PD, MSA, and diabetes need to be considered in the pharmacologic management of these patients.
Park JW et al. · Autonomic neuroscience : basic & clinical (2020)
There is, however, a spectrum of responses within these extremes, and treatment should be individualized.
Other nonspecific treatments include fludrocortisone and octreotide.
The presence of associated clinical conditions, such as supine hypertension, heart failure, postprandial hypotension, PD, MSA, and diabetes need to be considered in the pharmacologic management of these patients.
In plain English: In selected cases, a range of alternative agents can be considered (fludrocortisone, pyridostigmine, yohimbine, atomoxetine, fluoxetine, ergot alkaloids, ephedrine, phenylpropanolamine, octreotide, indomethacin, ibuprofen, caffeine, methylphenidate and desmopressin), though recommendation strength is weak and quality of evidence is low.
Eschlböck S et al. · Journal of neural transmission (Vienna, Austria : 1996) (2017)
Yohimbine raises blood pressure via sympathetic activation
Relevant to both therapeutic use and adverse-effect risk
In plain English: Yohimbine, an α2 adrenergic receptor antagonist, is a well-validated pharmacological tool that has been widely employed in alcohol studies to evaluate noradrenergic activation.
Curley DE et al. · Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology (2022)
Yohimbine reliably increases noradrenergic activity and arousal
In plain English: Many male supplements claim to improve testosterone or ED parameters; however, there is limited evidence, which should be considered when counseling patients.
Kuchakulla M et al. · International journal of impotence research (2021)
Reviewed ingredients in popular OTC testosterone and erectile-dysfunction supplements; yohimbine was among the most common
Limited published RCT evidence for most ingredients, including yohimbine
68% of ingredients received C or D grades for contradicting, negative, or lacking evidence
In plain English: Cabergoline was the most frequently administered treatment, followed by yohimbine and bupropion. The cabergoline improved orgasm in 66% of the population and yohimbine in 55%.
Gómez-Bueno MP et al. · Actas urologicas espanolas (2025)
Kulkarni S et al. · Journal of cardiovascular pharmacology (2024)
A multidisciplinary team may be required in some patients with multiple comorbidities and polypharmacy.
However, there is a lack of robust efficacy and safety evidence for all therapies.
Building robust real-world and stratified clinical trials based on underlying pathophysiology may pave the way for further drug development and better clinical strategies and in this challenging unmet medical need.
In plain English: In this systematic review we present information relating to the effectiveness and safety of the following interventions: alprostadil (intracavernosal, intraurethral, topical), cognitive behavioural therapy, ginseng, papaverine, papaverine plus phentolamine (bimix), papaverine plus phentolamine plus alprostadil (trimix), penile prostheses, phosphodiesterase inhibitors (sildenafil, tadalafil, vardenafil), psychosexual counselling, vacuum devices, and yohimbine.
Khera M et al. · BMJ clinical evidence (2011)
Yohimbine has modest ED efficacy
PDE5 inhibitors are first-line
Yohimbine's role is secondary
12RCT2022
In plain English: Thus, YHM may improve sprint performance although more mechanistic study is warranted to accentuate underlying processes mediating performance enhancement.
Barnes ME et al. · International journal of environmental research and public health (2022)
Findings showed that mean power (p < 0.001; η2 = 0.024), total work (p < 0.001; η2 = 0.061), and HR (p < 0.001; η2 = 0.046), were significantly higher with YHM supplementation versus PL.
Fatigue index (p < 0.001; η2 = 0.054) and post-exercise LA (p < 0.001; d = 1.26) were significantly lower with YHM compared to PL.
YHM resulted in significantly higher EPI concentrations versus PL (p < 0.001; η2 = 0.225) pre- and post-exercise while NE only increased as a function of time (p < 0.001; η2 = 0.227) and was unaffected by treatment.
In plain English: The investigated major stress mediators were not sufficient to imitate previously shown stress effects on approach-avoidance conflict behavior.
Fricke K et al. · Psychopharmacology (2023)
The investigated major stress mediators were not sufficient to imitate previously shown stress effects on approach-avoidance conflict behavior.
We discuss potential reasons for our findings and implications for future research.
In plain English: The available data does not support yohimbine supplementation or the use of Resurgex Plus® to improve athletic performance in elite soccer players.
Abreu R et al. · Journal of the International Society of Sports Nutrition (2023)
In plain English: A prospective, open-labelled, single-centre, pharmacokinetic (PK) drug-drug interaction study was performed in 15 healthy male subjects.
Leutzendorff A et al. · British journal of clinical pharmacology (2025)
Described yohimbine absorption and clearance
Highlights variable metabolism between individuals