# Yohimbe (Pausinystalia johimbe)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/yohimbe
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-19
**Evidence Score:** 8 / 10
**Category:** African
**Also Known As:** Pausinystalia johimbe, Corynanthe johimbe, Yohimbe bark, African potency bark, Johimbi, Corynante yohimbe, West African yohimbe

## Overview

Yohimbe (Pausinystalia johimbe) contains yohimbine hydrochloride, an alpha-2 adrenergic receptor antagonist that improves blood flow and sexual function. Clinical studies demonstrate significant improvements in erectile dysfunction with nearly 3 times higher success rates versus placebo.

## Health Benefits

• Erectile dysfunction improvement - Strong evidence from meta-analysis of 8 RCTs (n=460) showing OR=2.87 for ED improvement vs placebo
• Enhanced sexual desire and arousal - 71% response rate in RCT (n=86) with improvements in sexual desire metrics
• Improved erection quality and rigidity - Polysomnography-confirmed improvements in penile rigidity in clinical trial
• Psychogenic ED treatment - Particularly effective for non-organic erectile dysfunction per multiple studies
• Potential vascular health benefits - Preclinical evidence shows inhibition of vascular smooth muscle proliferation via FOXO3a pathways

## Mechanism of Action

Yohimbine hydrochloride blocks alpha-2 adrenergic receptors in peripheral blood vessels and genital tissue, reducing sympathetic nervous system activity that normally constricts blood flow. This antagonism increases nitric oxide availability and promotes vasodilation in penile arteries. Additionally, yohimbine may influence central nervous system pathways involved in sexual arousal and libido.

## Clinical Summary

A meta-analysis of 8 randomized controlled trials involving 460 participants showed yohimbe supplementation provided 2.87 times greater odds of erectile dysfunction improvement compared to placebo. An RCT with 86 subjects demonstrated 71% response rate for enhanced sexual desire and arousal metrics. Polysomy studies indicate improved erection quality and rigidity with standardized yohimbine doses. Evidence quality is moderate, with most studies using 15-30mg yohimbine hydrochloride daily.

## Nutritional Profile

Yohimbe bark (Pausinystalia johimbe) is not consumed as a food source but rather as a pharmacologically active herbal preparation. Its value lies entirely in its bioactive alkaloid profile rather than macronutrient content. **Primary Bioactive Alkaloid:** • Yohimbine (indole alkaloid, alpha-2 adrenergic antagonist) — bark contains approximately 1–6% total alkaloids by dry weight, with yohimbine comprising roughly 10–15% of total alkaloid fraction, yielding approximately 1,000–15,000 mg/kg (0.1–1.5%) yohimbine in raw bark depending on source, age, and preparation method. Typical standardized extracts deliver 2–8 mg yohimbine per dose. **Secondary/Related Alkaloids:** • Corynanthine (rauwolscine/alpha-yohimbine) — approximately 0.1–0.5% of bark dry weight; acts as alpha-2 antagonist with slightly different receptor selectivity than yohimbine • Ajmalicine (raubasine) — approximately 0.05–0.3%; mild cerebrovascular vasodilator • Corynantheine — trace to 0.1%; mild alpha-adrenergic activity • Allo-yohimbine — trace amounts; stereoisomer of yohimbine with reduced potency • Dihydrocorynantheine — trace amounts • Pseudoyohimbine — trace amounts; weaker alpha-2 antagonism. **Minor Constituents:** • Tannins (condensed and hydrolyzable) — approximately 5–12% of bark dry weight; may affect GI absorption of co-consumed substances • Proanthocyanidins — variable amounts contributing to astringency • Plant sterols (beta-sitosterol, stigmasterol) — trace quantities • Saponins — minor amounts • Cellulose and lignin — bulk structural carbohydrates (not nutritionally relevant). **Mineral Content (trace, per gram of bark):** • Potassium, calcium, magnesium, iron, manganese — present in negligible nutritional quantities typical of tree bark matrices. **Bioavailability Notes:** • Oral bioavailability of yohimbine from raw bark is approximately 20–33%, with significant first-pass hepatic [metabolism](/ingredients/condition/weight-management) via CYP3A4 and CYP2D6 enzymes. • Peak plasma levels achieved in 45–90 minutes post-ingestion. • Half-life of yohimbine is approximately 0.5–2.5 hours (highly variable due to CYP2D6 polymorphisms — poor metabolizers may experience 3–5× higher plasma concentrations). • Tannins in raw bark may partially reduce alkaloid absorption compared to purified yohimbine HCl, though some evidence suggests the full-spectrum bark extract produces a more gradual absorption curve. • The presence of corynanthine and other alkaloids in whole bark may modulate the pharmacological profile compared to isolated yohimbine. • Alkaloid extraction efficiency increases substantially with ethanol-based preparations (70–90% ethanol) versus water decoctions (approximately 30–50% alkaloid recovery). • No significant macronutrient (protein, fat, carbohydrate), vitamin, or dietary fiber value — yohimbe bark is classified strictly as a pharmacological botanical, not a nutritional supplement.

## Dosage & Preparation

Clinically studied doses: 5.4-6 mg yohimbine HCl orally 3x daily (total 16.2-18 mg/day), equivalent to ~30 mg standardized bark extract (4-6% yohimbine), for 4-10 weeks. Some studies used up to 30 mg/day total yohimbine HCl. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Common side effects include anxiety, elevated heart rate, hypertension, dizziness, and gastrointestinal upset. Yohimbe can interact dangerously with antidepressants (especially MAOIs), [blood pressure](/ingredients/condition/heart-health) medications, and stimulants, potentially causing hypertensive crisis. Contraindicated in individuals with heart disease, kidney disease, or psychiatric disorders. Pregnant and breastfeeding women should avoid use due to insufficient safety data.

## Scientific Research

A 2022 systematic review and meta-analysis (PMC9612744) of 8 double-blind RCTs (n=460) found yohimbine superior to placebo for ED (OR=2.87, P<0.001). Key trials include a 1997 RCT (PMID: 9315493) showing 71% response rate vs 45% placebo, and a 1998 meta-analysis (PMID: 9649257) confirming efficacy (OR=3.85).

## Historical & Cultural Context

In West African traditional medicine, particularly Bantu systems in Cameroon and Congo, yohimbe bark has been used for centuries as an aphrodisiac and for treating impotence and fatigue. Traditional preparations include decoctions or powders administered orally.

## Synergistic Combinations

L-arginine, Tribulus terrestris, Maca root, Panax ginseng, Zinc

## Known Interactions

| Substance | Severity | Summary | URL |
|---|---|---|---|
| Dexamethasone | SAFE | 🟢 SAFE — Yohimbe and Dexamethasone can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/dexamethasone |
| Fludrocortisone | SAFE | 🟢 SAFE — Yohimbe and Fludrocortisone can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/fludrocortisone |
| Cabergoline | SAFE | 🟢 SAFE — Yohimbe and Cabergoline can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/cabergoline |
| Bromocriptine | SAFE | 🟢 SAFE — Yohimbe and Bromocriptine can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/bromocriptine |
| Octreotide | SAFE | 🟢 SAFE — Yohimbe and Octreotide can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/octreotide |
| Letrozole | SAFE | 🟢 SAFE — Yohimbe and Letrozole can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/letrozole |
| Anastrozole | SAFE | 🟢 SAFE — Yohimbe and Anastrozole can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/anastrozole |
| Raloxifene | SAFE | 🟢 SAFE — Yohimbe and Raloxifene can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/raloxifene |
| Fluticasone | SAFE | 🟢 SAFE — Yohimbe and Fluticasone can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/fluticasone |
| Tiotropium | SAFE | 🟢 SAFE — Yohimbe and Tiotropium can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/tiotropium |
| Theophylline | SAFE | 🟢 SAFE — Yohimbe and Theophylline can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/theophylline |
| Roflumilast | SAFE | 🟢 SAFE — Yohimbe and Roflumilast can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/roflumilast |
| Benzonatate | SAFE | 🟢 SAFE — Yohimbe and Benzonatate can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/benzonatate |
| Pau d'Arco | SAFE | 🟢 SAFE — Yohimbe and Pau d'Arco can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/pau-darco |
| Andrographis | SAFE | 🟢 SAFE — Yohimbe and Andrographis can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/andrographis |
| Goldenseal | SAFE | 🟢 SAFE — Yohimbe and Goldenseal can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/goldenseal |
| Barberry | SAFE | 🟢 SAFE — Yohimbe and Barberry can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/barberry |
| Oregon Grape Root | SAFE | 🟢 SAFE — Yohimbe and Oregon Grape Root can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/oregon-grape-root |
| White Willow Bark | SAFE | 🟢 SAFE — Yohimbe and White Willow Bark can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/white-willow-bark |
| Feverfew | SAFE | 🟢 SAFE — Yohimbe and Feverfew can be taken together safely. | https://ingredients.hermeticasuperfoods.com/interactions/feverfew |

## Frequently Asked Questions

### How much yohimbe should I take for erectile dysfunction?

Clinical studies typically use 15-30mg of standardized yohimbine hydrochloride daily, divided into 2-3 doses. Start with lower doses (5-10mg) to assess tolerance, as individual sensitivity varies significantly.

### How long does yohimbe take to work for sexual function?

Acute effects may occur within 1-3 hours of ingestion, but consistent improvements in erectile function typically require 2-3 weeks of regular supplementation. Peak benefits are often seen after 4-6 weeks of use.

### Can yohimbe be taken with blood pressure medication?

No, yohimbe should not be combined with blood pressure medications without medical supervision. Yohimbine can cause dangerous blood pressure fluctuations and may counteract or amplify antihypertensive effects.

### What's the difference between yohimbe bark and yohimbine HCl?

Yohimbe bark contains variable amounts of yohimbine (0.5-2%) plus other alkaloids, while yohimbine HCl is the standardized, isolated active compound. Yohimbine HCl provides more predictable dosing and potency for clinical effects.

### Does yohimbe help with weight loss or fat burning?

Limited evidence suggests yohimbine may enhance fat oxidation during fasted exercise by blocking alpha-2 receptors in fat tissue. However, effects are modest and primarily studied in lean individuals, not as a standalone weight loss supplement.

### Is yohimbe safe for people with heart conditions or anxiety?

Yohimbe may not be suitable for individuals with cardiovascular conditions, as it can increase heart rate and blood pressure through its alpha-2 adrenergic antagonist activity. People with anxiety disorders or panic disorder should exercise caution, as yohimbe may exacerbate these conditions by increasing sympathetic nervous system activation. Medical consultation is essential before use if you have any cardiac or psychiatric history.

### What does clinical research actually show about yohimbe's effectiveness for erectile dysfunction?

A meta-analysis of 8 randomized controlled trials involving 460 participants demonstrated that yohimbe significantly improved erectile dysfunction compared to placebo, with an odds ratio of 2.87. Additionally, separate RCT data confirmed improvements in penile rigidity via polysomnography testing and showed a 71% response rate for enhanced sexual desire metrics. The evidence is considered moderate to strong for ED improvement, though individual results vary.

### Can I take yohimbe with caffeine, stimulants, or other herbal supplements?

Combining yohimbe with caffeine or other sympathomimetic stimulants may amplify stimulant side effects such as elevated heart rate, anxiety, and tremors, and should generally be avoided. Other stimulating herbs like guarana, ephedra, or ginseng may have additive effects on the nervous system. It is advisable to consult a healthcare provider before combining yohimbe with any other supplements or medications.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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