A shadowy market for weight-loss drugs has emerged online

In late 2022, pharmacist Joseph Lambson got an unusual call from a poison control specialist.

He said, “Hey Joe, I’m getting these weird calls about semaglutide.” According to the specialist’s calculations, people were giving themselves 10 times the correct dose. But that didn’t make sense. The drug is the key ingredient in the blockbuster diabetes and weight-loss medications Ozempic and Wegovy. Both come in prefilled injector pens, which typically take the guesswork…