The Supplement Shelf Doesn't Know You're on Tadalafil — Here's How to Check Anyway
L-arginine, horny goat weed, yohimbine, and 'testosterone boosters' all look harmless in a glossy bottle. But when tadalafil is in the mix, 'natural' is not a compatibility test. Here's a plain-English way to check your stack before you add another capsule.