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HIV and Cialis

Mar 2, 2009

I am Hiv positive and have been take Cialis from time to time but I was recently told Cialis and HIV meds do not mix. Is that true and if so what about Viagra or is there something else out there.

Response from Dr. Frascino


The problem with Cialis and HIV drugs involves protease inhibitors primarily. Use of protease inhibitors can increase the blood levels of Cialis (tadalafil) in your bloodstream because these drugs are inhibitors of certain enzyme pathways that help clear Cialis from the blood (CYP3A4, CYP2C9, CYP2C19 and CYP2D6). Based on pharmacologic studies, patients taking concomitant potent CYP3A4 inhibitors should not exceed a 10 mg dose of Cialis and that 10 mg should not be taken more frequently than once in a 72-hour period.

The story is similar for Viagra. The recommendation for folks on protease inhibitors is to take no more than a 25 mg dose of Viagra within a 48-hour period.

Dr. Bob

Raspado??? Sweet Cream?
CD4 Count in relationship to CD4 %

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