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U.S. Department of Health and Human Services

Safety

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Sustiva (efavirenz) Capsules and Tablets August 2008


Detailed View: Safety Labeling Changes Approved By FDA Center for Drug Evaluation and Research (CDER) -- August 2008

 

The detailed view includes drug products with safety labeling changes to the BOXED WARNING, CONTRAINDICATIONS, WARNINGS, PRECAUTIONS, ADVERSE REACTIONS, or PATIENT PACKAGE INSERT/MEDICATION GUIDE sections. Deletions or editorial revisions made to these sections are not included in this summary. Read about the new physician labeling format.


Summary View

 

Sections Modified Summary of Changes to Contraindications and Warnings

WARNINGS

  • Reproductive Risk Potential: Pregnancy Category D

ADVERSE REACTIONS

  • Postmarketing Experience
    • Central and Peripheral Nervous System
      • Cerebellar coordination and balance disturbances (added)

WARNINGS

Reproductive Risk Potential: Pregnancy Category D

...Because of the long half-life of efavirenz, use of adequate contraceptive measures for 12 weeks after discontinuation of Sustiva is recommended...

...As of July 2007, the Antiretroviral Pregnancy Registry has received prospective reports of 373 pregnancies exposed to efavirenz-containing regimens, nearly all of which were first-trimester exposures (359 pregnancies). Birth defects occurred in 7 of 295 live births (first-trimester exposure) and 1 of 26 live births (second/third-trimester exposure). None of these prospectively reported defects were neural tube defects. However, there have been five retrospective reports of findings consistent with neural tube defects, including meningomyelocele. All mothers were exposed to efavirenz-containing regimens in the first trimester...