Not to my knowledge.Is there a clinical reason why the patient could not be switched to Toprol XL?
I think it depends on your state, if it's legal or not. But let's face it, any atenolol is going to be better than none, it's not like it grows on trees.If you are out of atenolol 100mg is it ok to offer atenolol 50mg 2qd without contacting the doctor. Obviously try to contact MD but if not available then ok to switch with patients consent? Then there is the switch from 25mg to 1/2 tab of 50 mg switch would I would not try without MD consent.