Does Doravirine Lamivudine And Tenofovir Disoproxil Fumarate Interact with Rifabutin?
Doravirine Lamivudine And Tenofovir Disoproxil Fumarate and Rifabutin have a major drug interaction according to U.S. FDA drug labeling data. Co-administration decreases doravirine plasma concentrations. If co-administered, one tablet of doravirine should be taken approximately 12 hours after the dose of DELSTRIGO. 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 information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.
- Severity
- Major
- Doravirine Lamivudine And Tenofovir Disoproxil Fumarate Class
- Human Immunodeficiency Virus 1 Non-Nucleoside Analog Reverse Transcriptase Inhibitor
- Rifabutin Class
- Rifamycin Antimycobacterial
- Management
- Close medical supervision required
- Data Source
- U.S. FDA via OpenFDA
How This Interaction Works
The interaction between Doravirine Lamivudine And Tenofovir Disoproxil Fumarate and Rifabutin occurs because cyp3a induction. Clinically, this means co-administration decreases doravirine plasma concentrations. if co-administered, one tablet of doravirine should be taken approximately 12 hours after the dose of delstrigo. This is classified as a major interaction, meaning it could cause serious harm if not properly managed. Your healthcare provider may need to adjust dosages, substitute one medication, or increase monitoring frequency.
What To Tell Your Doctor or Pharmacist
If you are taking Doravirine Lamivudine And Tenofovir Disoproxil Fumarate and your doctor is considering prescribing Rifabutin (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 how frequently you should be monitored while these are co-prescribed
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider