Does Elbasvir And Grazoprevir Interact with Efavirenz?
CDI records a contraindicated classification for Elbasvir And Grazoprevir and Efavirenz. The stored summary is: Co-administration with efavirenz is contraindicated as it is a strong CYP3A inducer that may decrease elbasvir and grazoprevir plasma concentrations, leading to reduced therapeutic effect. The mechanism involves cyp3a induction. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This record was extracted from drug labeling through openFDA. NIH/NLM RxNorm is used for drug identities. The summary and severity classification are CDI's processed information, not a verbatim source quotation. Product, route, and patient circumstances matter.
- Severity
- Contraindicated
- Elbasvir And Grazoprevir Class
- Hepatitis C Virus NS5A Inhibitor
- Efavirenz Class
- Human Immunodeficiency Virus 1 Non-Nucleoside Analog Reverse Transcriptase Inhibitor
- Management
- Do not take together
- Data Source
- U.S. FDA via OpenFDA
Recorded Mechanism
CYP3A induction
What To Tell Your Doctor or Pharmacist
If you are taking Elbasvir And Grazoprevir and your doctor is considering prescribing Efavirenz (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Ask about alternative medications that do not interact with your current regimen
- Ask how frequently you should be monitored while these are co-prescribed
- Never stop or change either medication without first consulting your healthcare provider