FDA warning on hidden yohimbine is a reminder not to stack mystery supplements with stimulants

People training outdoors near a public fitness area

Source: U.S. Food and Drug Administration medication health fraud notification, content current as of June 10, 2026.

The FDA is advising consumers not to buy or use Branch Manager for Men after laboratory testing found yohimbine that was not listed on the product label. The agency says the product has been promoted for male sexual enhancement online and may also be sold in some retail stores.

Yohimbine has a long history in the supplement world because it has been marketed around fat loss, energy, and performance-adjacent claims. The issue in this FDA notice is not a training benefit. It is an undeclared drug-like ingredient at levels the agency described as dangerous, with risks that can include severe blood pressure elevation, irregular heartbeat, seizures, anxiety, confusion, tremors, and other serious effects.

Why it matters for lifters

Lifters often combine pre-workout caffeine, fat-loss products, energy drinks, ADHD medication, or other stimulants around hard training sessions. The FDA specifically warned that risk is greater when yohimbine is combined with stimulants such as caffeine or ephedra, ADHD medications, MAOIs, or certain antidepressants.

The practical takeaway is simple: a label that looks like a supplement label is not proof that the product is low risk or fully disclosed. Hidden ingredients are especially concerning for people who train hard, use stimulants, compete in tested sport, have cardiovascular risk factors, or take prescription medications.

What to watch next

Watch for additional FDA updates, retailer removals, or MedWatch reports tied to this product category. If a product promises sexual enhancement, fast fat loss, extreme energy, or bodybuilding results while using vague “natural” language, treat it as a red flag until the source, testing, and label can be verified.

Anyone who already used the product and experienced chest pain, racing heartbeat, severe anxiety, tremors, fainting, or other concerning symptoms should contact a qualified health professional or seek urgent care. Consumers and clinicians can also report adverse events through FDA MedWatch.

This article is for informational purposes only and is not medical advice. Talk with a qualified health professional before making decisions about supplements, medications, stimulant use, or treatment for symptoms.