Millions of Americans seek inexpensive and accessible prescription drugs in Mexican pharmacies. Competition among Mexican pharmacies, or "farmacias," has increased in recent years. U.S. Customs inspectors have found themselves on the front lines of an effort to control the influx of controlled substances, which can be purchased beyond U.S. borders without prescriptions.

Interviews with:
Lalesha Railsback, 19, of San Diego, Calif.
William Tarr, 32, of San Diego, Calif.
Ignacio Romo, 66, a pharmacist in Tijuana, Mexico

Note: Translated voiceover by Chet Rhodes / washingtonpost.com

Sources:
The Washington Post, U.S. Customs

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