seriously considering zepound (from doctor recommendation) but i’m really scared

i have severe pcos and have gained over 100 pounds in the last year with quite literally no change to my diet. my doctor is suggesting zepbound, but i am so scared of having some deadly side effect years down the road. i’m only 21, and i want more than anything to get this weight off and feel like myself again, but people have told me that it’s not safe or that it’s barely been tested or that it’s going to cause a ton of problems in the future. i know the benefits likely outweigh the risks, but is it really worth it? i don’t want to regret my decision in the future

edit: thank you all for your responses! they really helped ease my mind. i have decided that im doing it!! i’m calling my doctor first thing tomorrow and telling her to send my dose in :))