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Home > Treatment > Drug Dosing Toolkit > Tybost

Tybost (cobicistat)

Type of Drug: Pharmacokinetic Enhancer

A pharmacokinetic enhancer "boosts" certain other drugs by increasing their levels in the body and slowing their elimination.

Approved adult dosing

150 mg tablet

  • Daily

    Tybost

    Tybost

Notes on taking this medication

  • Used as a booster of the integrase inhibitor elvitegravir and of certain protease inhibitors; must be taken with one of these
  • Should take with food
  • Tybost interacts with many other drugs; persons using Tybost with those drugs may need an adjustment to their dose of Tybost or the other drugs; consult your medical provider

Side effects

  • Nausea, diarrhea
  • Headache
  • Fatigue
  • Elevation in blood creatinine levels (this is used to assess kidney function; your provider will monitor creatinine)

See accompanying chart: Tips for Common Side Effects

My doctor's instructions

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