RT Book, Section A1 Schwinghammer, Terry L. A1 DiPiro, Joseph T. A1 Ellingrod, Vicki L. A1 DiPiro, Cecily V. SR Print(0) ID 1178899189 T1 Erectile Dysfunction T2 Pharmacotherapy Handbook, 11e YR 2021 FD 2021 PB McGraw Hill PP New York, NY SN 9781260116694 LK accesspharmacy.mhmedical.com/content.aspx?aid=1178899189 RD 2024/04/19 AB Erectile dysfunction (ED) is the persistent failure (minimum of 3 months) to achieve a penile erection suitable for sexual intercourse. Patients often refer to it as impotence.