HomeEfavirenz Lamivudine And Tenofovir Disoproxil FumarateEfavirenz Lamivudine And Tenofovir Disoproxil Fumarate + Felodipine

Does Efavirenz Lamivudine And Tenofovir Disoproxil Fumarate Interact with Felodipine?

Efavirenz Lamivudine And Tenofovir Disoproxil Fumarate and Felodipine have a unknown drug interaction according to U.S. FDA drug labeling data. Calcium channel blockers: Diltiazem Others (e.g., felodipine, nicardipine, nifedipine, verapamil) ↓diltiazem* ↓desacetyl diltiazem* ↓N-monodesmethyldiltiazem* ↓calcium channel blocker Diltiazem dose adjustments should be guided by clinical response (refer to the full prescribing information for diltiazem). 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
Unknown
Efavirenz Lamivudine And Tenofovir Disoproxil Fumarate Class
Human Immunodeficiency Virus 1 Non-Nucleoside Analog Reverse Transcriptase Inhibitor
Felodipine Class
Dihydropyridine Calcium Channel Blocker
Management
Consult your pharmacist
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Efavirenz Lamivudine And Tenofovir Disoproxil Fumarate and your doctor is considering prescribing Felodipine (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
  • Never stop or change either medication without first consulting your healthcare provider
💊 Efavirenz Lamivudine And Tenofovir Disoproxil Fumarate(Symfi)+💊 Felodipine

Severity & Interaction Details

ℹ️
unknown
Interaction documented — severity unclassified
The FDA label notes an interaction but the severity is not classified in our dataset.
Severity scale
MinorContra
On record
Yes
Drug A class
Human Immunodeficiency Virus 1 Non-Nucleoside Analog Reverse Transcriptase Inhibitor
Drug B class
Dihydropyridine Calcium Channel Blocker
Source
FDA drug label - efavirenz, lamivudine and tenofovir disoproxil fumarate

What this means in plain English

Calcium channel blockers: Diltiazem Others (e.g., felodipine, nicardipine, nifedipine, verapamil) ↓diltiazem* ↓desacetyl diltiazem* ↓N-monodesmethyldiltiazem* ↓calcium channel blocker Diltiazem dose adjustments should be guided by clinical response (refer to the full prescribing information for diltiazem).

Recent research & FDA safety updates

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Auto-aggregated from PubMed E-utilities and FDA safety data.

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Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine. For informational purposes only. Always consult your pharmacist or physician.