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Diamond, L., et al

Why this is legal in 2026 Compounded tirzepatide is dispensed under Section 503A of the Federal Food, Drug, and Cosmetic Act, which authorizes a state-licensed pharmacy to compound a drug for an identified individual patient with documented medical need

Vitamin B12 is essential for nerve function, red blood cell production, and DNA synthesis

Also see: Which supplements and foods help relieve constipation and which can cause constipation

There are regulations that allow for this in Australia, but they were designed for people with compelling clinical needs, not to provide routine access to products without an established therapeutic role