The price difference is so great that some Americans travel to Mexico to take advantage of the savings.

In addition, some prescription medications in the U.S. are sold over the counter in Mexico.

This article discusses how to use a Mexican pharmacy.

An older woman reading instructions for medicine

BraunS / Getty Images

It also explains the legality of buying medications in Mexico and the rules regarding crossing the border with pharmaceuticals.

like note that the rules often change without notice, so it’s important to stay informed.

But there are limits.

And here is a key point: A prescription from a Mexican doctor is no longer acceptable.

All medications must be declared upon arrival at the border.

And they must be in their original containers.

Medications that are not approved by the FDA may not be allowed.

Note that it is illegal to fail to declare imported medications with CBP agents properly.

The FDA prohibits the importation of “unapproved new drugs” for the purpose of distribution and sale.

This category includes any drugs failing to meet FDA safety and effectiveness standards.

This also includes foreign-made versions of U.S.-approved drugs.

These are the drugs that are often cheaper than those in the U.S.

If you’re flying, contact theTransportation Security Administration (TSA)to ask about requirements.

Risk of Importing Prescription Medication

Imported drugs from a Mexican pharmacy can carry some serious risks.

Summary

There are limits to bringing prescriptions purchased at a Mexican pharmacy into the United States.

Even then, there are restrictions.

For example, you will be limited to a three-month supply.

U.S. Food & Drug Administration.Personal importation.

U.S. Food & Drug Administration.CFRcode of federal regulations Title 21.

U.S. Customs and Border Protection.Traveling with medication.

U.S. Customs and Border Protection.Prohibited and restricted items.

U.S. Food & Drug Administration.Human drug imports.

U.S. Food & Drug Administration.Drug supply chain integrity.

U.S. Food & Drug Administration.Counterfeit medicine.

U.S. Embassy and Consulates in Mexico.Health alert: Counterfeit pharmaceuticals (March 17,2023).

U.S. Food & Drug Administration.5 tips for traveling to the U.S. with medications.