sildenafil, Viagra, Revatio (cont.)

Pharmacy Author:
Medical and Pharmacy Editor:

Patients should not combine sildenafil with Revatio (another form of sildenafil) or other PDE5 inhibitors (for example, vardenafil [Levitra], tadalafil [Cialis]).

Cimetidine (Tagamet), erythromycin, ketoconazole (Nizoral), itraconazole (Sporanox) and mibefradil (Posicor) can cause marked increases in the amount of sildenafil in the body. Patients taking these medications should be observed carefully if sildenafil is used.

It is expected that rifampin will decrease blood levels of sildenafil and probably reduce its effectiveness.

PREGNANCY: Although extensive testing in animals has demonstrated no negative effects on the fetus, sildenafil has not been studied in pregnant women. There is no effect on sperm count or motility of sperm in men.

NURSING MOTHERS: It is not known whether sildenafil is excreted into breast milk.

Medically reviewed by Eni Williams, PharmD



Reference: FDA Prescribing Information.


Medically Reviewed by a Doctor on 1/13/2015


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