My vial says semaglutide but it is not a pen. Is that the same drug?
Answer
The molecule may be the same. The paperwork behind it is not, and how it is supplied and measured is completely different.
In more detail
A brand pen delivers a labeled amount per click and you never touch a concentration. A vial hands you a powder or a liquid and a syringe, and the number of units you draw means nothing at all until you know how many milligrams are in each milliliter. Two people drawing 'twenty-five units' from differently mixed vials are taking different amounts. Anything outside the approved supply chain also has no label, no batch release testing you can read, and no manufacturer standing behind what is in it. This site does not source, sell or endorse anything; a pharmacist can explain what a specific product's paperwork does and does not cover.
Source
General pharmacy practice and the approved labeling structure.
Educational use only, never medical advice. No doses.