Quinupristin and Dalfopristin

ByBrian J. Werth, PharmD, University of Washington School of Pharmacy
Reviewed/Revised Jun 2022 | Modified Sep 2022
VIEW PROFESSIONAL VERSION

Quinupristin and dalfopristin belong to a class of antibiotics called streptogramins. These drugs are given together as a combination (quinupristin/dalfopristin). They are used to treat serious infections (especially skin infections), including those caused by bacteria resistant to other antibiotics.

Quinupristin/dalfopristin works by preventing bacteria from producing proteins they need to grow and multiply.

Quinupristin/dalfopristin is given intravenously, usually through a tube (catheter) inserted into a large central vein, such as one in the neck. This is called a central catheter. Quinupristin/dalfopristin can also be given intravenously into a vein in the upper arm and threaded to a large central vein. This is called a peripherally inserted central catheter, or a PICC.

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(See also Overview of Antibiotics.)

Use of Quinupristin/Dalfopristin During Pregnancy and Breastfeeding

Quinupristin/dalfopristin should be used during pregnancy only when the benefits of treatment outweigh the risks. (See also Drug Use During Pregnancy.)

Whether use of quinupristin/dalfopristin during breastfeeding is safe is not known. (See also Drug Use During Breastfeeding.)

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