Side effects and watch-outs
- Dizziness
- Dry mouth
- Headache
- ⚠️ Tachycardia at high doses
- Potential interaction with anticoagulants
- ⚠️ Mild PDE5 inhibition — do not combine with pharmaceutical PDE5 inhibitors or nitrates
Supplement / Performance
Icariin (Horny Goat Weed)
PDE5 inhibitor from Epimedium. Natural Viagra-like mechanism. Also mild 5-alpha reductase inhibitor and androgen receptor agonist. Evidence for bone density and testosterone support.
Educational reference only. This page does not diagnose, prescribe, or replace care from a licensed professional. Laws, availability, and clinical appropriateness vary by location.