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Tribulus Terrestris Side Effects and Safety
Tribulus terrestris side effects are mostly stomach irritation and reflux. Rare case reports describe kidney or liver problems and a prolonged erection. Stallion Power lists tribulus eighth in an 82 mg blend, so one gummy holds 5 mg or less by our arithmetic, but it is not risk free.
Written by the Stallion Power label deskUpdated · 4 min read
Common effects01
What are the usual tribulus terrestris side effects?
The usual tribulus terrestris side effects are gastrointestinal irritation and reflux (MSKCC, Tribulus terrestris).
Studies of tribulus used 400 to 750 mg a day, and the review gives no long-term safety verdict (Vilar Neto 2025, tribulus review).
One gummy holds 5 mg or less, so a stomach effect from the herb alone is not expected. Sugar alcohol in the base is a separate matter, and the amount is far below a laxative level (21 CFR 184.1835 (sorbitol)).
Rare cases02
Are there serious tribulus case reports?
Yes, though they are rare and come from products taken in other forms and doses.
Memorial Sloan Kettering lists a bodybuilder with severe jaundice and acute kidney failure, a 28-year-old with liver and kidney toxicity, seizures and high blood pressure, and a 36-year-old with priapism (MSKCC, Tribulus terrestris).
| Report | Problem |
|---|---|
| Bodybuilder | Jaundice and kidney failure |
| 28-year-old man | Liver and kidney toxicity, seizures, high blood pressure |
| 36-year-old man | Priapism |
Case reports prove no cause, but they explain why caution is sensible.
Emergency03
When is a long erection an emergency?
An erection that lasts more than four hours is an emergency. Go to a hospital right away (NHS, Priapism).
The same warning applies to prescription ED drugs (MedlinePlus, Sildenafil). Do not wait to see whether it passes.
Stallion Power: from $49 a bottle30 gummies · 2, 3 or 6 bottles · free shipping on 3 or 6 · 60-day guarantee
See packsSelf-check04
Is tribulus right for you?
Check the five points below before taking any gummy, and ask a doctor if any answer worries you.
Next steps05
How do you use tribulus products more safely?
Tell your doctor or pharmacist about every supplement, since herbs can change how medicines work (FDA, Mixing medications and supplements).
Keep taking prescribed medicine as directed. Stop the gummy if a reaction appears, as the label says. The side effects page and the how to use page cover the rest of the label.
Want to try Stallion Power? Both packs ship free, and both come with the 60-day guarantee (all bottles returned, even empty ones).
Prices on the sales page, October 18, 2026 (Stallion Power sales page). Check your medicines with your doctor first.
FAQ06
Tribulus safety questions
Can tribulus cause kidney or liver problems?
Rare case reports link tribulus to kidney and liver toxicity (MSKCC, Tribulus terrestris). They do not prove cause, and they involved other products and doses. Tell your doctor if you have kidney or liver disease.
Does tribulus affect blood sugar or blood pressure?
Memorial Sloan Kettering notes possible additive effects with medicines for blood pressure and diabetes (MSKCC, Tribulus terrestris). Ask a clinician first if you take either kind.
Is tribulus safe to take daily?
Trials of 400 to 750 mg ran one to three months (Vilar Neto 2025, tribulus review). Long-term safety is unproven. The Stallion Power label allows one gummy daily, or as directed by a health care professional.
Who wrote this07
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by Stallionpowermen, a USA stocking retailer for Stallion Power, not by the manufacturer or the distributor. We are paid a commission when you buy through our order links.
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