Safety Revisions to Norvir (Ritonavir) Tablets, Capsules and Oral Solution Labeling
December 7, 2011
On December 7, 2011, the Food and Drug Administration approved the following revisions to the Norvir (ritonavir) tablets, capsules and oral solution product labeling:
The Contraindications section was updated to include toxic epidermal necrolysis (TEN) and Stevens-Johnson syndrome.
The Warning and Precautions, Adverse Reactions and Postmarketing Experience sections were updated to include toxic epidermal necrolysis (TEN)
The Warning and Precaution: Drug Interaction section was updated to include the following:
Norvir is a CYP3A4 inhibitor. Initiating treatment with Norvir in patients receiving medications metabolized by CYP3A4 or initiating medications metabolized by CYP3A4 in patients already maintained on Norvir may result in increased plasma concentrations of concomitant medications. Higher plasma concentrations of concomitant medications can result in increased or prolonged therapeutic or adverse effects, potentially leading to severe, life-threatening or fatal events. The potential for drug-drug interactions must be considered prior to and during therapy with Norvir. Review of other medications taken by patients and monitoring of patients for adverse effects is recommended during therapy with Norvir.View Full Article
Updated Information on Drug Interactions Between Victrelis (Boceprevir) and Certain Boosted HIV Protease Inhibitor Drugs
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