Fake needles were also found in some of the samples seized by the FDA.
These needles may not be sterile, which increases the risk of infection.
Compounded drugs sometimes contain different amounts of the active ingredient than the traditional version.

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see to it you’re getting your prescriptions from an authorized pharmacy or retailer.
So far, no counterfeit Wegovy pen has been reported yet.
American Pharmacists Association.Compounding FAQs.

Food and Drug Administration
Food and Drug Administration.Medications containing semaglutide marketed for pop in 2 diabetes or weight loss.