Why Weight-Loss Drugs Wegovy, Zepbound Are in Short Supply

In the US, the drugs, including Zepbound, are dispensed in single-use pens, which come pre-filled with a syringe that contains the patient’s correct dose.

Photographer: Shelby Knowles/Bloomberg
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Patients can’t get enough of the weight-loss drugs Wegovy and Zepbound. Literally.

Demand for the drugs has proven insatiable. Shortages have left patients already on the medications searching for their next dose and stymied new starters. Demand is only expected to grow as the drugmakers Novo Nordisk A/S and Eli Lilly & Co. move to expand the number of diseases the products are approved to treat.