"Does Colistimethate expire?"

"Yes. Colistimethate has a labeled shelf life of 7 days. Do not use medication past its expiration date."

How Long Does Colistimethate Last?

Q: "How long does Colistimethate last?"

"Colistimethate has a shelf life of 7 days according to federal drug label data. Always check the expiration date on your specific packaging."

Generic: COLISTIMETHATE SODIUM

Source: Federal Drug Label Data

7 days

Shelf life from federal drug label data

Storage Conditions

Room temperature Refrigerate Protect from light

Reported Side Effects

From 2,024 FDA adverse event reports (FAERS). 85.7% classified as serious.

2,024

Total Reports

85.7%

Serious

Side Effects Tracked

Side Effect	Reports
OFF LABEL USE	171
HOSPITALISATION	170
INFECTIVE PULMONARY EXACERBATION OF CYSTIC FIBROSIS	142
ACUTE KIDNEY INJURY	106
CYSTIC FIBROSIS	88
CONDITION AGGRAVATED	83
DYSPNOEA	82
DEATH	75
DRUG INEFFECTIVE	73
PNEUMONIA	72
INFECTION	68
SEPTIC SHOCK	64
THROMBOCYTOPENIA	49
RENAL FAILURE	48
PATHOGEN RESISTANCE	46

Data from FDA Adverse Event Reporting System (FAERS). Reports reflect consumer/provider submissions — higher counts may reflect higher usage, not necessarily higher risk. Not all reports establish a causal link.

Manufacturer

Xellia Pharmaceuticals USA LLC

Storage Information

Store between 20° to 25°C (68° to 77°F). (See USP controlled room temperature). Store reconstituted solution in refrigerator 2° to 8°C (36° to 46°F) or between 20° to 25°C (68° to 77°F), and use within 7 days. HOW SUPPLIED Colistimethate for Injection, USP is supplied in vials containing colistimethate sodium (equivalent to 150 mg colistin base activity per vial) as a white to slightly yellow Iyophilized cake. NDC-70594-023-09: one individual vial. Store between 20° to 25°C (68° to 77°F). (See USP controlled room temperature). Store reconstituted solution in refrigerator 2° to 8°C (36° to 46°F) or between 20° to 25°C (68° to 77°F), and use within 7 days. DESCRIPTION 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). Colistimethate sodium is a polypeptide antibiotic with an approximate molecular weight of 1750. The empirical 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 and 5-methylhexyl in colistin B Chemical Structure PRINCIPAL DISPLAY PANEL - 150 mg Vial Carton NDC 70594-023-09 Colistimethate for Injection, USP Colistin base activity 150 mg*/vial Rx Only For Intramuscular and Intravenous Use 1 x 150 mg vial novaplus ™ P

Medication Rankings

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Important: This information is from federal drug label data and is for reference only. Always follow the specific expiration date printed on your medication packaging. Consult your pharmacist or healthcare provider with questions about medication storage or expiration.

Data source: View Colistimethate on DailyMed (NIH) | Federal drug label data.

Page generated: 2026-03-29