Metronidazole

(Mfr: SE)(Conc/L: 5 g)

Penicillin G potassium

(Mfr: PF)(Conc/L: 200 million units)

Remarks:

5% penicillin loss in 22 hr and 8% in 72 hr at 25°C. 2% penicillin loss in 12 days at 5°C. No metronidazole loss

Ref:

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