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Label Changes for:

Viracept (nelfinavir mesylate) Oral Powder and Tablets

February 2011

Changes have been made to the PRECAUTIONS and PATIENT PACKAGE INSERT sections of the safety label.

Detailed View: Safety Labeling Changes Approved By FDA Center for Drug Evaluation and Research (CDER) – February 2011



Drug Interactions
  • Coadministration of warfarin and Viracept may affect concentrations of warfarin. It is recommended that the INR (international normalized ratio) be monitored carefully during treatment with Viracept , especially when commencing therapy.


  • Before you take warfarin (Coumadin) with ,Viracept talk to your healthcare provider since Viracept may affect the amount of warfarin in your blood.