Colistin (Colistimethate)

Antibiotics

Antibiotics · Polymyxin

Colistin (Colistimethate)

Dose

Load 9 million IU IV then 4.5 million IU q12h; adjust by renal function.

Use

Carbapenem-resistant Gram-negative infection — usually part of combination therapy.

Monitoring

Daily creatinine, neurological status, drug levels where available.

Side effects

  • Nephrotoxicity
  • Neurotoxicity, paraesthesia
  • Neuromuscular blockade

Always confirm dose against your local formulary / BNF before prescribing.

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