This article discusses how to use a Mexican pharmacy. The FDA is only responsible for drugs marketed and sold in the U. As more and more Americans struggle to cover the cost of prescription medications, a trip to Mexico is an attractive solution, especially for those who live along the southern border. This also includes foreign-made versions of U. This is especially true with drugs that are available only by prescription in the United States but sold over the counter in Mexico.Alana – You can buy good quality original Pfizer viagra in Tijuana (Made in Mexico). Not all pharmacies have and need to ask. The price of one tablet is around USD 17 but when you buy four it’s cheaper around USD 13 per tablet. Everything is in the original Pfizer packaging with a pharmacy name, receipt and the name of the doctor. Rules for Shopping at Tijuana Pharmacies. In Tijuana, you will find many pharmacies selling medications. At these pharmacies, you will be able to find muscle relaxants, Viagra, and even. 1. Farmacia La Más Barata. “This pharmacy also sells drinks and snacks, also some medical supplies like bandaids.” more. 2. Farmacia Gusher. “The pharmacy is good, it gets me a 32% discount (through a free membership they offer) but the joint ” more. 3.