convulex 500mg tablet er - Valproic Acid (500mg) medicine

convulex 500mg tablet er - Uses, Price, Side Effects & Substitutes

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๐Ÿญ A N Pharmacia ๐Ÿ“ฆ Varies by brand ๐Ÿ’Š Allopathy ๐Ÿ“… Updated: Jul 2, 2026
๐Ÿ“‹ Prescription Required ๐Ÿ’Š Generic Available
Medically Reviewed
SaathiMed Expert Panel | Jul 02, 2026

What is convulex 500mg tablet er used for?

Alporate (Valproic Acid) is used to treat NEURO CNS. It contains Valproic Acid (500mg), which Increases GABA levels in the brain by inhibiting GABA transaminase and enhancing. Always consult your doctor before use. Take as prescribed.

  • Generic Name: Valproic Acid
  • Manufacturer: A N Pharmacia
  • Form: Allopathy
  • Pregnancy Category: A
  • Prescription Required: Yes
๐Ÿ’ก Did You Know? India has the highest number of USFDA-compliant plants outside the USA.

๐Ÿ’Š convulex 500mg tablet er Uses & Benefits

Epilepsy (partial and generalized seizures), bipolar disorder (mania), migraine prophylaxis.

Off-label uses: Neuropathic pain, status epilepticus (IV), borderline personality disorder, aggression in dementia.

๐Ÿ“‹ Drug Information

Generic Name(s)Valproic Acid
Brand NameAlporate
ManufacturerA N Pharmacia
Packaging / FormVaries by brand (Allopathy)
Therapeutic ClassNEURO CNS
Action ClassSodium channel modulators (AED)
Route of AdministrationOral
StorageStore at room temperature (20-25ยฐC); protect from moisture.
Shelf LifeAs per manufacturer

๐Ÿ”ฌ Pharmacology (PK/PD)

Pharmacokinetics

AbsorptionRapidly and completely absorbed from the gastrointestinal tract; food may delay absorption but does not affect extent.
DistributionDistributes widely throughout the body; crosses blood-brain barrier and placenta.
Protein BindingApproximately 90% bound to plasma proteins, mainly albumin.
MetabolismExtensively metabolized in the liver via glucuronidation and beta-oxidation; also involves CYP450 enzymes (CYP2C9, CYP2A6).
Half-Life9-16 hours (may be shorter in children and longer in elderly or hepatic impairment).
ExcretionPrimarily excreted in urine as metabolites; less than 3% excreted unchanged.
BioavailabilityApproximately 100% (oral).
Onset of Action1-4 hours for anticonvulsant effect; may take days to weeks for mood stabilization.
Peak Plasma Time1-4 hours (may be delayed with food).
Duration of ActionVariable; typically 8-12 hours.

How It Works

Increases GABA levels in the brain by inhibiting GABA transaminase and enhancing GABA synthesis; also blocks voltage-gated sodium channels and T-type calcium channels.

Mechanism Steps

1Inhibits GABA transaminase, reducing GABA breakdown
2Enhances glutamic acid decarboxylase, increasing GABA synthesis
3Blocks voltage-gated sodium channels, stabilizing neuronal membranes

๐Ÿ’ก How to Take convulex 500mg tablet er

Follow your doctor's prescription exactly.

โš ๏ธ Side Effects of convulex 500mg tablet er

โœ… Common Side Effects

  • Nausea
  • Vomiting
  • Dizziness
  • Somnolence
  • Tremor
  • Weight gain
  • Hair loss
  • Thrombocytopenia

๐Ÿšจ Serious Side Effects

  • Hepatotoxicity
  • Pancreatitis
  • Hyperammonemic encephalopathy
  • Bone marrow suppression
  • Stevens-Johnson syndrome
  • QT prolongation

โš ๏ธ Rare Side Effects

  • Polycystic ovary syndrome
  • Encephalopathy
  • Fanconi syndrome
  • Hypothyroidism
  • Vasculitis

Consult your doctor if you experience any unusual symptoms.

๐Ÿ”ฌ Drug Interactions

โš ๏ธ DrugSeverityEffect
Carbamazepine Major Decreased valproate levels; increased risk of carbamazepine toxicity
Lamotrigine Major Increased lamotrigine levels; risk of Stevens-Johnson syndrome
Phenytoin Major Altered phenytoin levels; increased valproate toxicity
Warfarin Moderate Increased bleeding risk
Aspirin Moderate Increased valproate levels; bleeding risk
Alcohol Moderate Increased CNS depression and hepatotoxicity

๐Ÿšจ Major Interactions

  • Carbamazepine
  • Lamotrigine
  • Phenytoin
  • Phenobarbital
  • Rifampin
  • Topiramate

โšก Moderate Interactions

  • Aspirin
  • Warfarin
  • Cimetidine
  • Erythromycin
  • Fluoxetine
  • Felbamate

โ„น๏ธ Minor Interactions

  • Antacids
  • Cholestyramine
  • Oral contraceptives

๐Ÿฝ๏ธ Food Interactions

Food may delay absorption; avoid alcohol.

๐Ÿท Alcohol Interaction

Increased CNS depression and hepatotoxicity risk.

๐Ÿ›ก๏ธ Safety & Warnings

๐Ÿšซ Contraindications

Hypersensitivity to valproate; hepatic disease or significant hepatic dysfunction; known urea cycle disorders; porphyria.

๐Ÿ“Š Monitoring Parameters

Liver function tests, platelet count, serum valproate levels (therapeutic range: 50-100 mcg/mL), CBC, coagulation profile.

๐Ÿคฑ Lactation Safety

Valproic acid is excreted in breast milk; caution advised; risk of hepatotoxicity in infant.

๐Ÿ’Š Overdose Management

Supportive care; activated charcoal if recent ingestion; hemodialysis may be effective; monitor for CNS depression, respiratory depression, and hepatic toxicity.

โฐ Missed Dose

Take as soon as remembered unless close to next dose; do not double dose.

๐Ÿ‘จโ€โš•๏ธ Reviewed by Expert

SaathiMed Expert Panel

MD, PhD - Pharmacology

Reviewed: Jul 02, 2026

๐Ÿ”— View Profile

๐Ÿ”„ Substitutes for convulex 500mg tablet er

View All

Alternative brands with exact same active ingredient (Valproic Acid (500mg)):

Medical Note: Always consult your doctor before switching medications.

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