What are the drawbacks of taking this? I saw the point about price, but if it was cheap enough to not be a factor, is there a reason why everybody wouldn't be on it?
It can affect other medications and anesthesia due to how it slows your body's intake of... everything? For example, my wife who takes wegovy and ADHD medication had to switch from an extended release stimulant to a regular immediate release one, which now acts like an extended release due to the interaction.
Anesthesiologists need to know about semaglutide usage because it makes the period you need to fast before going under a lot longer
Availability, price, some people get unpleasant side-effects. There are newer and better versions available, and more coming out soon. The whole field is relatively new.