Blockbuster weight loss drugs have been arguably the biggest health story of the last several years — and there are no signs their popularity will slow down anytime soon. Millions of Americans have taken the drugs,

Drew, a 36-year-old man from San Antonio, Texas, drove more than 250 miles (400 km) to Mexico to buy cheap Ozempic to help him lose weight. Going home, he checked the pens. They looked unusual, so he shared photos on social media.

Ozempic is an FDA-approved medication for people who have type 2 diabetes. It’s often prescribed “off-label” for weight loss — when a drug is prescribed for something it’s not approved for.