ExoticRx · exoticrx.com/drugs/virginiamycin
US brand names:Stafac
Streptogramin A+B combination that binds 50S ribosomal subunit, inhibiting peptidyl transferase and protein synthesis. Bactericidal when combined.
Primarily livestock growth promoter (banned in EU). Not for companion animals. VFD required. Concern for streptogramin resistance transfer.
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