Get ready for incoming.
If it's his business, it's his choice what to stock. He is a pharmacist not an emergency room. Unfortunately, most people think that if a doctor prescribes it, a pharmacist is required to fill it on demand, full, stop, period.
In some states (Texas was mentioned) it seems he is compelled to do it...
IMO he should be compelled everywhere...
It isn't for him to judge what is or isn't allowed...