Can certain medications change bone structure?

Yes, my mother had this issue, cortisone taken by mouth can damage bones

There are some that change bone density.

Yes,
They can effect the density and how it might heal amongst other changes ,
but if they do, your doctor will warn you ahead of time about it

that is a fact... but calcification does not change structures,,,,Cobalt radiation does and chemotherapy too

Not directly but indirectly you might take some Zoloft and some wine and crack your face on the sidewalk. 🤷🏼‍♂️

Idk, it’s possible but usually stuff just causes weight issues which can effect someone’s looks

probably. The pharmaceutical companies need to keep you on your meds.

Structure? I don’t know, but strength probably.

You can lose bone with some, so I suppose so.

Steroids, even inhalers can cause bone thinning

Those that drain the body of calcium.

no