Atypical antipsychotics: (clozapine, olanzapine)—Lithium

Tricyclic antidepressants (amitriptyline)

Beta-adrenergic blockers, particularly propranolol

Pizotifen

Sodium valproate

Anabolic steroids

Sulphonylureas: (chlorpropamide, glibenclamide, glimepiride and glipizide)

Insulin

Thiazolidinediones (pioglitazone)