Jatropha macrantha

Botanical

What is it

Jatropha macrantha, called huanarpo macho in Peru, is a shrub native to the Andes. The stem is used in traditional Peruvian medicine, particularly as a folk remedy for male sexual support.

How it works

Huanarpo macho contains tannins, flavonoids, and proanthocyanidins. Preclinical studies suggest possible effects on smooth muscle relaxation and circulation, which align with its traditional use for erectile function. Human clinical evidence is essentially absent. The traditional reputation is well-known in Peru, but rigorous controlled trials are lacking.

Dosage

There is no established daily intake recommendation. Traditional preparations use the dried stem as a decoction or alcoholic maceration.

When and how to take it

Traditional use is typically before intended activity for sexual support, mirroring how other herbal aphrodisiacs are used. No critical timing established.

1 commercial form

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Huanarpo macho stem extract

Traditional Peruvian preparation as a decoction or alcoholic extract.

Standardization not common; active markers undefined.

Safety

Human safety data is sparse. Traditional use suggests reasonable tolerance, but rigorous adverse-event monitoring is lacking. Some Jatropha species contain toxic compounds, so species verification matters.

Who should be cautious

Avoid in pregnancy, breastfeeding, and in people with cardiovascular disease without medical advice. People taking PDE5 inhibitors or nitrates should consult a clinician.

Interactions

Theoretical interactions with erectile dysfunction medications and antihypertensives. No specific clinically significant interactions formally reported.

Frequently asked questions

Does huanarpo macho work like Viagra?⌄

No clinical evidence supports a Viagra-like effect. Traditional use is widespread in Peru, but mechanisms and efficacy are not validated in modern trials.

Is it safe?⌄

Traditional use suggests reasonable tolerance, but rigorous safety data is lacking. Avoid combining with cardiac or erectile dysfunction medications.

References

Jatropha macrantha on Wikidata — Wikidata link

Jatropha macrantha on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Jatropha macrantha (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.