caused by SSRI and antipsychotic medications. Cyproheptadine has been studied for the treatment of posttraumatic stress disorder. Veterinary use Cyproheptadine is used in cats as an appetite stimulant and as an adjunct in the treatment of asthma. Possible adverse effects include excitement and aggressive behavior. The elimination half-life of cyproheptadine in cats is 12 hours. Cyproheptadine is a second line treatment for pituitary pars intermedia dysfunction in horses. References Antiandrogens Antihistamines Antipsychotics Appetite stimulants Dibenzocycloheptenes Dopamine antagonists Local anesthetics Muscarinic antagonists Piperidines 5-HT2 antagonists Serotonin receptor antagonists Sodium channel blockers