Drug class	Common examples
Estrogen	Oral contraceptives
Herbal	Ephedra, ginseng, ma huang
Illicit	Amphetamines, cocaine
Nonsteroidal anti-inflammatory	Cyclooxygenase-2 inhibitors, ibuprofen, naproxen (Naprosyn)
Psychiatric	Buspirone (Buspar), carbamazepine (Tegretol), clozapine (Clozaril), fluoxetine (Prozac), lithium, tricyclic antidepressants
Steroid	Methylprednisolone (Depo-Medrol), prednisone
Sympathomimetic	Decongestants, diet pills