Sustiva Oral
In Depth
- Uses and How to Use
- Dosage and Storage
- Precautions and Side Effects
- Drug Interactions
- Drug Images
Pronounced: (eh-FAV-er-enz)
Sustiva Oral Interactions
See also How to Use section.
Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for it. Do not start, stop or change the dosage of any medicine before checking with them first.
This drug should not be used with the following medications because very serious interactions may occur:
- ergot alkaloids (e.g., bromocriptine, dihydroergotamine, ergonovine)
- etravirine
- cisapride
- alprazolam
- midazolam
- triazolam
- St Johns wort
- bepridil
- pimozide
If you are currently using any of these medications listed above, tell your doctor or pharmacist before starting efavirenz.
Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of:
- amprenavir
- fosamprenavir
- indinavir
- lopinavir
- ritonavir
- atazanavir
- saquinavir
- rifabutin
- rifampin
- sertraline
- itraconazole
- ketoconazole
- caspofungin
- warfarin
- clarithromycin
- methadone
- birth control pills (ethinyl estradiol)
- phenytoin
- phenobarbital
- carbamazepine
- certain cholesterol-lowering drugs (atorvastatin, pravastatin, simvastatin)
- voriconazole
This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
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