what class of drug is semaglutide How Ozempic Works PDB-101: Diabetes Mellitus: Diabetes Mellitus:

For individuals with a diagnosed B12 deficiency or impaired absorption, the dosage for B12 injections is significantly higher to replenish stores and manage symptoms

Rosenstock J, Nino A, Soffer J, et al

However, due to the pharmacokinetic profile of GLP-1, its half-life is very short as it is rapidly degraded (less than 2 minutes intravenous and 1-2h subcutaneous) limiting its therapeutic potential in its native form

others may be available over-the-counter depending on the formulation

Community sources cite amber glass containers, opaque zip bags, or small boxes as alternatives to the original carton for individual vials in active use