Blog
Hidden Ingredients in Male Enhancement Pills Explained
FDA laboratory tests have found sildenafil and tadalafil, the drugs in Viagra and Cialis, in sexual enhancement products without any mention on the label. Those drugs can dangerously lower blood pressure, especially with nitrates. You cannot spot them by looking. You can lower your risk by checking FDA notices, asking a pharmacist and buying through a clear seller route.
Written by the Stallion Power label deskUpdated · 5 min read
What FDA has found
In named products sold for sexual enhancement, FDA labs found drugs that the label never listed.
A notice dated May 29, 2026 reports sildenafil and tadalafil, not listed on the label, in one such product. FDA advises consumers not to buy or use it (FDA, X10 hidden-drug notice). An older notice, whose body is dated 2015, reports the same two drugs in another product found through international mail shipments (FDA, Wild Sexx hidden-drug notice). Both say the drugs may interact with nitrates and lower blood pressure to dangerous levels, and both encourage reports to MedWatch.
These are two named products. They show a pattern worth knowing about. They say nothing about Stallion Power, and no source we read says it contains hidden drugs.
How hidden drugs end up in supplements
We cannot give a full answer, and we will not guess. The pages we read do not explain how a given maker lets a drug into a bottle. What they do say is limited and clear.
- Products marketed for sexual enhancement may contain prescription drugs that are not allowed in supplements, or ingredients missing from the label (NCCIH, Using Dietary Supplements Wisely).
- FDA does not approve supplements or their labels before sale (FDA, Q&A on dietary supplements).
- The seller is responsible for the product being free of adulteration and for truthful claims (FDA, Q&A on dietary supplements).
- Words such as "standardized", "verified" or "certified" do not guarantee quality (NCCIH, Using Dietary Supplements Wisely).
In short, the system relies on the seller being honest, and a few sellers are not. Nothing checks every bottle before it reaches you.
Why the risk is real
| Problem | Why it matters | Source |
|---|---|---|
| Drug not on the label | You cannot tell you are taking it | (FDA, X10 hidden-drug notice) (FDA, Wild Sexx hidden-drug notice) |
| Nitrate medicine | Combined with sildenafil-type drugs, blood pressure can fall too far | (MedlinePlus, Sildenafil) |
| Who takes nitrates | People with diabetes, high blood pressure, high cholesterol or heart disease often do | (FDA, X10 hidden-drug notice) |
| Double dosing | A hidden drug on top of a prescription ED medicine adds up. We found no source that quantifies this, so ask a pharmacist. | (MedlinePlus, Sildenafil) |
| Pre-sale review | None for supplements | (FDA, Q&A on dietary supplements) |
Stallion Power: from $49 a bottle30 gummies a bottle · 2, 3 or 6 bottles · free shipping on 3 or 6 · 60-day guarantee
See packsHow to lower your risk
- Check FDA notices. Search the product name with the word tainted or warning before you buy.
- Use a clear seller route. Know who sells it, where to reach them, and how returns work.
- Ask for evidence, not badges. A third-party lab report with a lot number is better than a seal. Read our testing page.
- Tell your pharmacist. Share the label and every medicine, especially nitrates.
- Stop if something is off. Report it to MedWatch and tell your doctor (FDA, X10 hidden-drug notice).
Chest pain, fainting, an erection lasting over four hours, or sudden vision or hearing loss (MedlinePlus, Sildenafil).
Where Stallion Power stands
The label lists nine ingredients and no drug. It names no manufacturer or facility, and it says "Produced in a GMP Facility" without a name. The seller lists a lot number and a certificate reference. We treat those as seller references, not lab proof, because we hold no certificate to check them against. Our batch verification page explains how to ask the seller for a document.
That is the honest position. We found no sign of hidden drugs and no lab report that rules them out. Read the tainted products guide and talk to your doctor. Keep taking prescribed medicine.
Who wrote this01
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, FTC, NIDDK, AHA and peer-reviewed sources.
Last updated . See our editorial standards and how we check reviews. This website is run by Gostallionpower, a Stallion Power U.S. merchant desk, not by the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
Keep reading
More Stallion Power pages
Stallion Power U.S. merchant desk
Ready to try Stallion Power?
Check your medicines first, then pick a pack. Three or six bottles ship free and cost less per bottle, and every pack carries the 60-day money-back guarantee.
- Order on the sales-page checkout
- 60-day money-back guarantee
- Delivery up to 60 days, per the sales page
