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How Do Streptogramins Work?: Detailed Datasheet

Medically reviewed by Min Clinic Staff | Updated: January 2026

How Do Streptogramins Work?

Streptogramins are a class of antibiotics that work by inhibiting the synthesis of protein in bacteria. There are two types of streptogramins: streptogramin A (dalfopristin) and streptogramin B (quinupristin). Individually, both A and B streptogramins inhibit bacterial growth (bacteriostatic). However, when combined, streptogramins A and B kill bacteria (bactericidal).

How Are Streptogramins Used?

Streptogramins are mainly effective against gram-positive bacteria. They are mainly used for the treatment of:

  • Skin infections
  • Bacteremia (presence of bacteria in the bloodstream)
  • Intravascular catheter-associated bacteremia (catheter-related bloodstream infection)

What Are Side Effects of Streptogramins?

Some of the most reported side effects of streptogramins include:

Some of the less common side effects of streptogramins include:

The information contained herein is not intended to cover all possible side effects, precautions, warnings, drug interactions, allergic reactions, or adverse effects. Check with your doctor or pharmacist to make sure these drugs do not cause any harm when you take them along with other medicines. Never stop taking your medication and never change your dose or frequency without consulting your doctor.

What Are Names of Streptogramin Drugs?

Streptogramin drug names include: