Priapism Associated with Zuclopenthixol
OBJECTIVE: To present a single case of zuclopenthixol-induced priapism and a literature review. CASE SUMMARY: We report the case of a 31-year-old patient hospitalized due to behavioral alterations and treated with oral zuclopenthixol, an antipsychotic from the thioxanthene family, who developed an acute, painful erection. DISCUSSION: The occurrence of priapism in our patient was related to zuclopenthixol. This adverse reaction is reported for the first time in a patient not concomitantly treated with other drugs associated with the appearance of priapism. The capacity of zuclopenthixol to induce priapism is thought to be due to its antagonist activity on α-adrenergic receptors. CONCLUSIONS: Priapism is an uncommon but potentially serious adverse effect of zuclopenthixol that practitioners, as with many other antipsychotics, should be aware of.