KnowraPriapismLinked fromLinked fromThe 7 pages that link to Priapism, each with the reason it gives.All 7Related 4Compared with 3Erectile dysfunctionCompared with: It is the opposite pattern of erection duration and can be a medical emergency.SildenafilRelated: It is a rare but serious event reported with erectile dysfunction treatments, including sildenafil.ErectionCompared with: It is a harmful failure of the mechanisms that normally end an erection.TadalafilRelated: A rare prolonged erection is a serious adverse effect requiring urgent medical care.TrazodoneRelated: This rare but serious adverse effect is especially associated with trazodone among antidepressants.VardenafilRelated: A persistent erection after vardenafil use requires urgent medical attention.Cock ringCompared with: A prolonged erection with a ring in place can require urgent medical assessment.