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XianL: validation

Most of these medications are administered via subcutaneous injection, with dosing frequencies ranging from twice daily to once weekly depending on the specific formulation

Furthermore, people with type 1 diabetes, diabetic retinopathy, pancreatitis, a personal or familial history of certain thyroid cancer or pregnant women should not take a GLP-1 drug

Hydration plays a role too

There are more nerves in the muscle in the thigh than in the deltoid muscle, and it is easier to find the safe place to do the injection in the upper arm (which is why this is a common used place to give vaccinations i.m.)