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Yoh5.0
Yohimbe Research
Mostly mechanism / observational
11 peer-reviewed studies
What the evidence says
Mostly mechanism / observational
Most Yohimbe studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from high-quality meta-analyses and randomised trials published 1995–2025.
Based on 11 studies · 1 meta-analysis · 1 RCT
Confidence
Moderate confidence
By outcome
Men's vitalityModerate improvement in erectile function (strongest for standardized yohimbine, not raw bark) · 2-8 weeks
Mostly mechanism / observational4 studies
Cognitive function
Too few graded studies2 studies
Muscle strength & power
Too few graded studies1 study
Endurance & exercise performance
Too few graded studies1 study
Heart & blood pressure
Too few graded studies1 study
Safety profile
Too few graded studies1 study
Active research area
7 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: 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)
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
8Systematic Review2023
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