: Counterfeits often have inconsistent dosages or hidden ingredients that can cause dangerous drops in blood pressure, especially if taken with nitrates.
: Only buy from established, licensed pharmacy chains (e.g., Farmacias Similares) rather than informal street vendors or "medical" shops in tourist markets. Bringing Viagra Back to the U.S. can you buy viagra in mexico
: It is widely available at major pharmacy chains, independent pharmacies, and even at airport pharmacies in tourist areas like Playa del Carmen and Cancun. : Counterfeits often have inconsistent dosages or hidden