My biggest pet peeve is doctors referring to medication by brand name instead of active ingredient.

Should be illegal, in my view.

I'm a little shit and whenever "most dominant brand name for paracetamol"* and "most dominant brand name for Ibuprofen"* are mentioned by a doctor, I play dumb and ask if that's paracetamol/Ibuprofen.

They're literally advertising for companies who's product is 5x more expensive for absolutely no reason whatsoever.

*I refuse to give them free advertising