duvanta np 20 tablet - Duloxetine (20mg) + Methylcobalamin (500mcg) medicine

duvanta np 20 tablet - Uses, Price, Side Effects & Substitutes

No reviews yet
๐Ÿญ Intas Pharmaceuticals Ltd ๐Ÿ“ฆ Varies by brand ๐Ÿ’Š Allopathy ๐Ÿ“… Updated: Jun 30, 2026
๐Ÿ“‹ Prescription Required ๐Ÿ’Š Generic Available
Medically Reviewed
SaathiMed Expert Panel | Jun 30, 2026

What is duvanta np 20 tablet used for?

Duzela M 20 Capsule DR (Duloxetine + Methylcobalamin) is used to treat NEURO CNS. It contains Duloxetine (20mg) + Methylcobalamin (500mcg), which Duloxetine inhibits serotonin and norepinephrine reuptake in the CNS, increasing. Always consult your doctor before use. Take as prescribed.

  • Generic Name: Duloxetine + Methylcobalamin
  • Manufacturer: Intas Pharmaceuticals Ltd
  • Form: Allopathy
  • Pregnancy Category: C
  • Prescription Required: Yes
๐Ÿ’ก Did You Know? The Indian pharmaceutical market is expected to reach $130 billion by 2030.

๐Ÿ’Š duvanta np 20 tablet Uses & Benefits

Diabetic peripheral neuropathy, Fibromyalgia, Chronic musculoskeletal pain, Major depressive disorder, Generalized anxiety disorder, Vitamin B12 deficiency with neuropathy

Off-label uses: Stress urinary incontinence, Chronic low back pain, Osteoarthritis pain

๐Ÿ“‹ Drug Information

Generic Name(s)Duloxetine + Methylcobalamin
Brand NameDuzela M 20 Capsule DR
ManufacturerIntas Pharmaceuticals Ltd
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassNEURO CNS
Action ClassSNRI (Serotonin-Norepinephrine Reuptake Inhibitor) + Vitamin B12
Route of AdministrationOral
StorageStore at 20-25ยฐC (68-77ยฐF); protect from light and moisture.
Shelf LifeAs per manufacturer

๐Ÿ”ฌ Pharmacology (PK/PD)

Pharmacokinetics

AbsorptionDuloxetine is well absorbed after oral administration; peak plasma concentrations occur about 6 hours post-dose. Methylcobalamin is absorbed via passive diffusion and active transport.
DistributionDuloxetine is extensively distributed with a volume of distribution of 1640 L. Methylcobalamin is distributed to tissues including the liver, bone marrow, and nervous system.
Protein BindingDuloxetine is approximately 90% bound to plasma proteins, mainly albumin and alpha-1-acid glycoprote
MetabolismDuloxetine is extensively metabolized in the liver via CYP1A2 and CYP2D6 to multiple metabolites. Methylcobalamin is converted to coenzyme forms in cells.
Half-LifeDuloxetine: about 12 hours (range 8-17 hours). Methylcobalamin: approximately 6 days (plasma half-li
ExcretionDuloxetine: 70% excreted in urine as metabolites, 20% in feces. Methylcobalamin: primarily excreted in bile and urine.
BioavailabilityDuloxetine: 50% (range 30-80%) due to first-pass metabolism. Methylcobalamin: oral bioavailability i
Onset of ActionDuloxetine: 1-2 weeks for therapeutic effect in neuropathic pain. Methylcobalamin: effects may be se
Peak Plasma TimeDuloxetine: 6 hours. Methylcobalamin: 3-8 hours.
Duration of ActionDuloxetine: approximately 24 hours. Methylcobalamin: sustained effects with regular dosing.

How It Works

Duloxetine inhibits serotonin and norepinephrine reuptake in the CNS, increasing their levels. Methylcobalamin acts as a cofactor for methionine synthase and methylmalonyl-CoA mutase, essential for myelin synthesis and nerve function.

Mechanism Steps

1Duloxetine binds to SERT and NET, blocking reuptake of serotonin and norepinephrine.
2Increased synaptic levels of serotonin and norepinephrine enhance neurotransmission.
3Methylcobalamin is converted to adenosylcobalamin and methylcobalamin in cells.

๐Ÿ’ก How to Take duvanta np 20 tablet

Follow your doctor's prescription exactly.

โš ๏ธ Side Effects of duvanta np 20 tablet

โœ… Common Side Effects

  • Nausea
  • Dry mouth
  • Somnolence
  • Fatigue
  • Constipation
  • Insomnia
  • Hyperhidrosis

๐Ÿšจ Serious Side Effects

  • Serotonin syndrome
  • Hepatotoxicity
  • Suicidal thoughts
  • Angle-closure glaucoma
  • Hypertensive crisis
  • Bleeding

โš ๏ธ Rare Side Effects

  • Seizures
  • Hyponatremia
  • Allergic reactions
  • Stevens-Johnson syndrome
  • Extrapyramidal symptoms

Consult your doctor if you experience any unusual symptoms.

๐Ÿ”ฌ Drug Interactions

โš ๏ธ DrugSeverityEffect
MAOIs Major Increased risk of serotonin syndrome
Warfarin Moderate Increased bleeding risk
NSAIDs Moderate Increased bleeding risk
Alcohol Moderate Increased hepatotoxicity and CNS depression

๐Ÿšจ Major Interactions

  • MAOIs
  • Linezolid
  • Methylene Blue
  • CYP1A2 inhibitors (e.g., fluvoxamine)
  • CYP2D6 inhibitors (e.g., paroxetine)

โšก Moderate Interactions

  • NSAIDs
  • Aspirin
  • Warfarin
  • Alcohol
  • Serotonergic drugs (e.g., SSRIs, triptans)

โ„น๏ธ Minor Interactions

  • Cimetidine
  • Quinolone antibiotics
  • Theophylline

๐Ÿฝ๏ธ Food Interactions

Grapefruit juice may increase duloxetine levels, Food delays absorption but does not affect extent

๐Ÿท Alcohol Interaction

Avoid alcohol; may increase risk of liver toxicity and CNS depression.

๐Ÿ›ก๏ธ Safety & Warnings

๐Ÿšซ Contraindications

Hypersensitivity to duloxetine or methylcobalamin, Concomitant use of MAOIs, Uncontrolled narrow-angle glaucoma, Severe renal impairment (CrCl <30 mL/min), Hepatic impairment

๐Ÿ“Š Monitoring Parameters

Liver function tests, Blood pressure, Serotonin syndrome symptoms, Bleeding signs, Methylmalonic acid levels (for B12 deficiency)

๐Ÿคฑ Lactation Safety

Duloxetine is excreted in breast milk; caution advised. Methylcobalamin is safe.

๐Ÿ’Š Overdose Management

Symptoms: serotonin syndrome, sedation, vomiting, tachycardia. Treatment: supportive care, activated charcoal if recent ingestion, monitoring for serotonin syndrome.

โฐ Missed Dose

Take as soon as remembered unless near next dose; skip missed dose if close to next dose. Do not double dose.

๐Ÿ‘จโ€โš•๏ธ Reviewed by Expert

SaathiMed Expert Panel

MD, PhD - Pharmacology

Reviewed: Jun 30, 2026

๐Ÿ”— View Profile

๐Ÿ˜Š Was this information helpful?

Browse Medicines A-Z

Search our extensive medical database alphabetically.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Back to Medicines Directory
SaathiMed App
SaathiMed App Consult doctors & order medicines faster
Install