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atovaquone

Interactions

Atovaquone/Rifabutin; Rifampin

This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.

Medical warning:

Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.

How the interaction occurs:

Rifabutin and rifampin speed up how quickly your liver processes atovaquone. Atovaquone slows down how quickly your liver processes rifabutin and rifampin.

What might happen:

The levels of atovaquone in your blood may be decreased, which can cause atovaquone not to work. The levels of rifabutin and rifampin in your blood may increase and cause more side effects than normal.

What you should do about this interaction:

Make sure that your healthcare professionals (e.g. doctor or pharmacist) know that you are taking these medicines together. Your doctor may want to consider changing one or both of the medicines or closely monitor how well each medicine is working.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.

References:

1.Mepron (atovaquone) US prescribing information. GlaxoSmithKline November, 2006.

2.Malarone (atovaquone and proguanil hydrochloride) US prescribing information. GlaxoSmithKline March, 2010.

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, expect as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.

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