: Mexico considers amphetamine-based stimulants restricted. Legitimate ADHD medications available in Mexico typically require a Mexican prescription (receta médica) ; a U.S. prescription is not valid for purchase.

Traveling with Medication to the United States - help.CBP.gov

: Since Adderall is not legally sold in Mexico, "Adderall" pills found in pharmacies—especially those catering to tourists—are frequently counterfeit . Investigative testing has shown these pills often contain methamphetamine instead of the intended dextroamphetamine/amphetamine salts.

: U.S. Customs and Border Protection (CBP) generally prohibits importing unapproved or foreign-made versions of FDA-approved drugs for personal use. To legally cross the border with medication, it must be on the approved list and typically requires an original prescription and valid medical documentation.