This formulation of Vancomycin Injection is not recommended for use during pregnancy because it contains the excipients polyethylene glycol (PEG 400) and N-acetyl D-alanine (NADA), which caused fetal malformations in animal reproduction studies. If use of vancomycin is needed during first or second trimester of pregnancy, use other available formulations of vancomycin
Vancomycin Injection: Single-dose flexible bags containing 500 mg vancomycin in 100 mL, 1 g vancomycin in 200 mL, 1.5 g vancomycin in 300 mL and 2 g vancomycin in 400 mL of liquid and 5 g vancomycin in 100 mL.