SPL Set ID: 6a335659-03b0-4a2d-9cd4-7dcf7da96fe6
1 drug(s) with this SPL Set ID
Colistimethate for Injection, USP is a sterile parenteral antibiotic product which, when reconstituted (see Reconstitution ), is suitable for intramuscular or intravenous administration. Each vial contains colistimethate sodium or pentasodium colistinmethanesulfonate (150 mg colistin base activity). The sodium content is approximately 0.158 mg (0.0069 mEq) Sodium per milligram of Colistin. Colistimethate for Injection, USP contains colistimethate sodium (equivalent to 150 mg colistin base activity per vial) as a white to pale yellow lyophilized cake. The color of the reconstituted solution is clear, pale yellow. Colistimethate sodium is a polypeptide antibiotic with an approximate molecular weight of 1750. The molecular formula is C 58 H 105 N 16 Na 5 O 28 S 5 and the structural formula is represented below: Dbu is 2,4-diaminobutanoic acid; R is 5-methylheptyl in colistin A & 5-methylhexyl in colistin B. structure