That obviously wasn't going to the US with them as that's not how you are allowed to take medicines into the US..
From the
FDA website
Q: What should travelers and visitors know about bringing medications into the U.S.?
A: When you come to the United States with medications, you fall under the authority of FDA, U.S. Customs and Border Protection (CBP) and the Transportation Security Administration (TSA) agents operating the nation’s airports. There are varying restrictions, and different agencies may have other requirements or jurisdiction over a product. So check with each agency before you plan to travel with medications into the country.
In general, you should have with you a valid prescription or doctor’s note—written in English—to bring medication to the U.S. The medication should be in its original container with the doctor’s instructions printed on the bottle. If you don’t have the original container, bring a copy of your prescription or a letter from your doctor explaining your condition and why you need this medication. Travel with no more than you need for your personal use during your stay. A rule of thumb: Bring no more than a 90-day supply of medication.