lump after tirzepatide injection site reaction? : r/tirzepatidecompound Lumps After Semaglutide Injection: Causes

Available from Mori H, Kuroda A, Ishizu M, Ohishi M, Takashi Y, Otsuka Y, et al

When drugs such as these go into shortage, the FDA allows compounding pharmacies to mix up their own version of the drug without approval, testing, or screening.8,9,18 The problem is that Novo Nordisk has patents on the semaglutide molecule (only they can produce it until 2032) so when its in shortage, you are getting something different

Rather than binding directly to the enzyme active site, copper ions interfere with the enzymes function at concentrations achievable through topical or injectable application

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