Purpose: We report a case of prolonged nocturnal penile tumescence (NPT) ca
used by the antiallergic agent epinastine.
Methods/Results: We measured NPT using Rigiscan-Plus(TM) (DacoMed, Minneapo
lis, MN, USA) with or without the patient having taken epinastine.
Conclusions: Considering its pharmacological effects on cyclic nucleotides,
epinastine may have an effect on erectile function.