cobadef injection - Methylcobalamin (1500mcg) + Vitamin B6 (Pyridoxine) (100mg) medicine

cobadef injection

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🏭 Clabert Lifesciences Pvt Ltd 📦 Varies by brand 💊 Allopathy 📅 Updated: Sep 24, 2026
📋 Prescription Required 💊 Generic Available
Medically Reviewed
11 min read
Reviewed by
SaathiMed Expert Panel | Sep 24, 2026

What is cobadef injection used for?

This medicine contains Methylcobalamin (1500mcg) + Vitamin B6 (Pyridoxine) (100mg) and is used to treat VITAMINS MINERALS NUTRIENTS. Methylcobalamin acts as a cofactor for methionine synthase, essential for myelin synthesis; Pyridoxi. Always consult your doctor before use.

  • Generic Name: Methylcobalamin + Vitamin B6 (Pyridoxine)
  • Manufacturer: Clabert Lifesciences Pvt Ltd
  • Form: Allopathy
  • Pregnancy Category: Category A
  • Prescription Required: Yes
💡 Did You Know? Over 80% of the antiretroviral drugs used globally to combat AIDS are supplied by Indian pharmaceutical companies.

💊 cobadef injection Uses & Benefits

Peripheral neuropathy, megaloblastic anemia, homocysteinemia, vitamin B12 and B6 deficiency.

Off-label uses: Chronic fatigue syndrome, diabetic neuropathy, carpal tunnel syndrome.

📋 Drug Information

Generic Name(s)Methylcobalamin + Vitamin B6 (Pyridoxine)
Brand NameAlnacob Plus Injection
ManufacturerClabert Lifesciences Pvt Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassVITAMINS MINERALS NUTRIENTS
Action ClassVitamins/Minerals/Nutrients
Route of AdministrationIntramuscular injection
StorageStore at 2-8°C, protect from light.
Shelf LifeAs per manufacturer

🔬 How This Medicine Works (Pharmacology)

Pharmacokinetics

AbsorptionIntramuscular injection results in rapid absorption into systemic circulation.
DistributionDistributes widely in body tissues, including liver, kidneys, and nervous system.
Protein BindingMethylcobalamin: ~90% bound to transcobalamins; Pyridoxine: minimal protein binding.
MetabolismMethylcobalamin: converted to adenosylcobalamin and hydroxocobalamin; Pyridoxine: metabolized in liver to pyridoxal phosphate.
Half-LifeMethylcobalamin: ~6 days; Pyridoxine: 15-20 days.
ExcretionRenal excretion of metabolites; small amount in bile.
Bioavailability100% via intramuscular route.
Onset of ActionWithin 24-48 hours for neurological symptoms.
Peak Plasma TimeMethylcobalamin: 1-3 hours; Pyridoxine: 0.5-1 hour.
Duration of ActionSeveral days to weeks depending on dose and condition.

How It Works

Methylcobalamin acts as a cofactor for methionine synthase, essential for myelin synthesis; Pyridoxine is a cofactor for enzymes in neurotransmitter synthesis and homocysteine metabolism.

Mechanism Steps

1Methylcobalamin binds to intrinsic factor in GI tract (if oral) or directly enters circulation via IM injection.
2Methylcobalamin acts as cofactor for methionine synthase, converting homocysteine to methionine.
3Methionine is converted to S-adenosylmethionine (SAMe), essential for myelin synthesis.
4Pyridoxine is converted to pyridoxal phosphate (PLP) in the liver.
5PLP acts as cofactor for enzymes in neurotransmitter synthesis (dopamine, serotonin, GABA).
6PLP also participates in homocysteine metabolism via cystathionine beta-synthase.
7Both vitamins reduce homocysteine levels, supporting vascular and neurological health.

💡 How to Take cobadef injection

Follow your doctor's prescription exactly.

⚠️ Side Effects of cobadef injection

✅ Common Side Effects

Injection site pain
Mild diarrhea
Headache

🚨 Serious Side Effects

Anaphylaxis
Peripheral neuropathy (with high dose pyridoxine)
Thrombotic events

⚠️ Rare Side Effects

Acne
Photosensitivity
Hypersensitivity reactions

Consult your doctor if you experience any unusual symptoms.

🔬 Drug Interactions

Drug Severity Effect
Levodopa Major Pyridoxine reduces levodopa efficacy by increasing peripheral metabolism.
Chloramphenicol Major May impair response to vitamin B12 therapy.
Colchicine Major May decrease absorption of vitamin B12.
Phenytoin Moderate Pyridoxine may decrease phenytoin levels.
Oral contraceptives Moderate May increase requirement for pyridoxine.
Isoniazid Moderate May cause pyridoxine deficiency.
Penicillamine Minor May increase pyridoxine requirement.
Cycloserine Minor May increase pyridoxine requirement.

🚨 Major Interactions

  • Levodopa
  • Chloramphenicol
  • Colchicine

⚡ Moderate Interactions

  • Anticonvulsants (phenytoin, phenobarbital)
  • Oral contraceptives
  • Isoniazid

🍷 Alcohol Interaction

Chronic alcohol use may reduce absorption of vitamin B6.

🛡️ Safety & Warnings

🚫 Contraindications

Hypersensitivity to any component; severe renal impairment (for high doses of pyridoxine).

🤱 Lactation Safety

Safe; both vitamins are excreted in breast milk but not harmful.

💊 Overdose Management

Discontinue injection; symptomatic treatment; pyridoxine overdose may cause neuropathy.

⏰ Missed Dose

Administer as soon as remembered; if close to next dose, skip missed dose.

🔄 Substitutes for cobadef injection

View All

Alternative brands with exact same active ingredient:

Medical Note: Always consult your doctor before switching medications.

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