Unsafe Ozempic knockoffs are flooding the market, raising significant safety concerns. The copycat weight-loss drugs are fueling a $1-billion-a-year industry. Two states have already disciplined the pharmacies that produce these drugs, while two more states are currently investigating. Doctors are worried that this shadow industry may be putting patients at risk. A federal statute is allowing these unvetted knockoffs to proliferate. This issue highlights problems within the compounding market.