A<unk>  is a licensed medicine that is regulated by legislation to require a<unk>  before it can be obtained.  The term is used to distinguish it from over-the-counter<unk> s which can be obtained without a<unk> .  Different jurisdictions have different definitions of what constitutes a<unk> .
Dispensation of<unk> s often includes a package insert (in Europe, a Patient Information Leaflet or PIL) that gives detailed information about the<unk> .
Prescription drug
Designer drug
Alternative medicine
Generic drug
Essential medicines
Pesticide
Food additive
Complementary medicine