HomeCobicistatCobicistat + Alafenamide

Does Cobicistat Interact with Alafenamide?

Cobicistat and Alafenamide have a unknown drug interaction according to U.S. FDA drug labeling data. Drug Interactions: Alteration in Dose or Regimen May Be Recommended Based on Drug Interaction Studies or Predicted Interaction Concomitant Drug Class: Drug Name Potential Effect ↑ = Increase, ↓ = Decrease, ↔ = No change Clinical Comment Antiretroviral Agents: Nucleotide Reverse Transcriptase Inhibitor (NRTI) tenofovir alafenamide ↔tenofovir alafenamide ↑tenofovir alafenamide TYBOST coadministered with darunavir in pediatric patients weighing at least 15 kg: No dose adjustment. 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
Cobicistat Class
Cytochrome P450 3A Inhibitor
Management
Consult your pharmacist
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Cobicistat and your doctor is considering prescribing Alafenamide (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
💊 Cobicistat(Tybost)+💊 Alafenamide

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
Cytochrome P450 3A Inhibitor
Drug B class
Source
FDA drug label - cobicistat

What this means in plain English

Drug Interactions: Alteration in Dose or Regimen May Be Recommended Based on Drug Interaction Studies or Predicted Interaction Concomitant Drug Class: Drug Name Potential Effect ↑ = Increase, ↓ = Decrease, ↔ = No change Clinical Comment Antiretroviral Agents: Nucleotide Reverse Transcriptase Inhibitor (NRTI) tenofovir alafenamide ↔tenofovir alafenamide ↑tenofovir alafenamide TYBOST coadministered with darunavir in pediatric patients weighing at least 15 kg: No dose adjustment.

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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.