Source: I prescribe antibiotics This situation is legitimate. Example: I prescribe you 5 days of trimethoprim for a urinary tract infection. It's 1 tablet per

Source: I prescribe antibiotics This situation is legitimate. Example: I prescribe you 5 days of trimethoprim for a urinary tract infection. It's 1 tablet per day. It comes in a box of 7. You can do the maths. Edit: and as others have suggested, if patients ask me what to do with extra meds of any kind I suggest they take them to the pharmacy.