acostin 1million iu injection - Colistimethate Sodium (1Million IU) medicine

Acostin 1Million IU Injection - Uses, Price, Side Effects

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๐Ÿญ Sun Pharmaceutical Industries Ltd ๐Ÿ“ฆ Varies by brand ๐Ÿ’Š Allopathy ๐Ÿ“… Updated: Jun 26, 2026
๐Ÿ“‹ Prescription Required ๐Ÿ’Š Generic Available
Medically Reviewed
Dr. SaathiMed Expert Panel | Jun 26, 2026

What is acostin 1million iu injection used for?

Acostin 1Million IU Injection contains Colistimethate Sodium, a polymyxin antibiotic used to treat serious infections caused by multidrug-resistant Gram-negative bacteria. It works by disrupting the bacterial cell membrane, leading to cell death. It is typically administered intravenously or intramuscularly under medical supervision.

  • Generic Name: Colistimethate Sodium
  • Manufacturer: Sun Pharmaceutical Industries Ltd
  • Form: Allopathy
  • Pregnancy Category: A
  • Prescription Required: Yes
๐Ÿ’ก Did You Know? The Indian pharmaceutical market is expected to reach $130 billion by 2030.

๐Ÿ’Š acostin 1million iu injection Uses & Benefits

Treatment of multidrug-resistant Gram-negative infections (e.g., Pseudomonas aeruginosa, Acinetobacter baumannii, Klebsiella pneumoniae); used in cystic fibrosis exacerbations.

Off-label uses: Nebulized therapy for ventilator-associated pneumonia; topical use for wound infections.

๐Ÿ“‹ Drug Information

Generic Name(s)Colistimethate Sodium
Brand NameAcostin 1 Million IU Injection
ManufacturerSun Pharmaceutical Industries Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassGASTRO INTESTINAL
Action ClassCell membrane active agent
Route of AdministrationIntravenous (IV) or intramuscular (IM); also via nebulization for respiratory infections.
StorageStore at 20-25ยฐC (68-77ยฐF); protect from light; reconstituted solution stable for 24 hours at room temperature.
Shelf LifeAs per manufacturer

๐Ÿ”ฌ Pharmacology (PK/PD)

Pharmacokinetics

AbsorptionNot significantly absorbed from the gastrointestinal tract; administered parenterally.
DistributionDistributes widely into body tissues, including lungs, kidneys, and liver; limited penetration into cerebrospinal fluid.
Protein BindingModerate (approximately 50-60%)
MetabolismPartially hydrolyzed to colistin (active form) in vivo; not extensively metabolized by liver.
Half-Life2-3 hours (colistimethate); 4-6 hours (colistin)
ExcretionPrimarily renal excretion (60-70% unchanged)
BioavailabilityNot applicable (parenteral administration)
Onset of ActionRapid (within 1-2 hours)
Peak Plasma Time1-2 hours after intravenous administration
Duration of Action8-12 hours

How It Works

Disrupts bacterial cell membrane integrity by binding to lipopolysaccharides and phospholipids, leading to increased permeability and cell death.

Mechanism Steps

1Colistimethate sodium is hydrolyzed to colistin in vivo.
2Colistin binds to lipopolysaccharides (LPS) in the outer membrane of Gram-negative bacteria.
3Displaces calcium and magnesium ions from the membrane.

๐Ÿ’ก How to Take acostin 1million iu injection

Follow your doctor's prescription exactly.

Dosage Timeline

๐ŸŒ… Morning โœ… โ˜€๏ธ Afternoon โŒ ๐ŸŒ† Evening โœ… ๐ŸŒ™ Night โŒ

โš ๏ธ Side Effects of acostin 1million iu injection

โœ… Common Side Effects

  • Nephrotoxicity (increased creatinine)
  • Neurotoxicity (paresthesias, dizziness, vertigo)
  • Gastrointestinal disturbances (nausea, vomiting)

๐Ÿšจ Serious Side Effects

  • Acute kidney injury
  • Neuromuscular blockade leading to respiratory depression
  • Seizures
  • Anaphylaxis

โš ๏ธ Rare Side Effects

  • Hepatotoxicity
  • Cardiotoxicity (arrhythmias)
  • Pseudomembranous colitis
  • Superinfection

Consult your doctor if you experience any unusual symptoms.

๐Ÿ”ฌ Drug Interactions

โš ๏ธ DrugSeverityEffect
Aminoglycosides Major Increased nephrotoxicity and ototoxicity
Neuromuscular blocking agents Major Enhanced neuromuscular blockade
Cephalosporins Moderate Increased nephrotoxicity risk

๐Ÿšจ Major Interactions

  • Neuromuscular blocking agents
  • Aminoglycosides
  • Vancomycin
  • Cyclosporine
  • Tacrolimus
  • Amphotericin B
  • Cisplatin
  • Loop diuretics

โšก Moderate Interactions

  • Cephalosporins
  • Penicillins
  • NSAIDs
  • ACE inhibitors

โ„น๏ธ Minor Interactions

  • Antacids
  • Probenecid

๐Ÿฝ๏ธ Food Interactions

No significant food interactions (parenteral).

๐Ÿท Alcohol Interaction

No known interaction.

๐Ÿ›ก๏ธ Safety & Warnings

Liver
Low
Kidney
Moderate
Heart
Low
Pregnancy
Category A

๐Ÿšซ Contraindications

Hypersensitivity to colistimethate or colistin; myasthenia gravis (relative).

๐Ÿ“Š Monitoring Parameters

Renal function (serum creatinine, BUN, urine output), electrolytes, neuromuscular function, signs of neurotoxicity (paresthesias, dizziness, seizures).

๐Ÿคฑ Lactation Safety

Excreted in breast milk; caution advised.

๐Ÿ’Š Overdose Management

Supportive care; hemodialysis may remove colistin; monitor renal function and neuromuscular status.

โฐ Missed Dose

Administer as soon as remembered; if close to next dose, skip missed dose; do not double dose.

๐Ÿ‘จโ€โš•๏ธ Reviewed by Expert

Dr. SaathiMed Expert Panel

MD, PhD - Pharmacology

Reviewed: Jun 26, 2026

๐Ÿ”— View Profile

๐Ÿ”„ Substitutes for acostin 1million iu injection

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Alternative brands with exact same active ingredient (Colistimethate Sodium (1Million IU)):

Medical Note: Always consult your doctor before switching medications.

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