Priapism may be caused by exposure to a number of drugs.
Drug-induced priapism is associated with the following features:
(1) The onset of priapism is temporally related to a drug exposure.
(2) Alternative explanations for the priapism are excluded.
(3) Priapism is absent when the patient is not exposed to the drug.
Drugs associated with priapism include:
(1) sildenafil citrate (Viagra)
(2) prednisone
(3) alcohol
(4) drugs of abuse (cocaine, ecstasy, marijuana)
(5) herbal remedies
(6) heparin
(7) antihypertensive drugs (prazosin)
(8) pregabalin
(9) antipsychotic drugs
(10) antidepressants