The observed antibacterial effects of cefazolin support its continued utility against susceptible S. aureus, E. coli and K. pneumoniae in skin and skin structure infections.

Ertapenem 100 mg/mL prepared in 20-mL polypropylene syringes was stable at room temperature for approximately 30 minutes. Room-temperature stability was extended to 4 hours after 24 hours of refrigeration. After being frozen for 14 or 28 days, ertapenem was stable for 3-5 hours after removal from the freezer.