Product image of Lamictal (Lamotrigine) supplied by GNH India

Lamictal

Active Ingredient:
Lamotrigine
Origin:
EU

Lamictal (Lamotrigine)

Lamotrigine, the active ingredient in Lamictal, is a sodium channel blocker presented as an oral tablet for oral use. It treats epilepsy and bipolar disorder in adults and children as indicated.

GNH India supplies Lamictal as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Glaxosmithkline Pharma A/S

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Indications & Clinical Uses

  • Lamotrigine is used to manage neurological and mood‑stabilising conditions by modulating neuronal excitability.
  • Epilepsy: reduces seizure frequency and severity in focal and generalized seizures.
  • Bipolar disorder: stabilises mood and decreases the risk of depressive episodes in patients with bipolar I or II.
  • Partial seizures: helps control focal onset seizures with or without secondary generalisation.

How It Works

  • Lamotrigine inhibits voltage‑gated sodium channels, prolonging the inactivated state of the channel and thereby stabilising neuronal membranes. This action decreases the release of excitatory neurotransmitters such as glutamate, leading to reduced neuronal hyper‑excitability that underlies seizure activity and mood swings.

Side Effects

Lamotrigine may cause a range of adverse reactions, from mild to severe.

Common Side Effects

  • Dizziness or light‑headedness
  • Headache
  • Nausea or gastrointestinal upset
  • Skin rash or itching
  • Insomnia or sleep disturbances
  • Blurred vision

Serious or Rare Side Effects

  • Stevens‑Johnson syndrome or toxic epidermal necrolysis
  • Severe skin reactions such as drug reaction with eosinophilia and systemic symptoms (DRESS)
  • Blood dyscrasias including agranulocytosis or aplastic anaemia
  • Hepatic failure or significant liver enzyme elevations
  • Suicidal thoughts or behaviour

Precautions & Warnings

  • When prescribing lamotrigine, clinicians should consider several safety measures.
  • Monitor skin reactions: discontinue immediately if severe rash develops.
  • Adjust dose with enzyme inducers: increase lamotrigine dose when co‑administered with carbamazepine, phenytoin or phenobarbital.
  • Avoid abrupt discontinuation: taper gradually to reduce seizure risk.
  • Use caution in hepatic impairment: dose may need adjustment.
  • Store at room temperature: keep in the original pack, protect from moisture and light.

Avoid Interactions

Lamotrigine interacts with several medicines that can alter its concentration or increase toxicity.

Major Interactions (Avoid)

  • Valproic acid: markedly increases lamotrigine levels and risk of severe skin reactions.
  • Carbamazepine: reduces lamotrigine plasma concentration, potentially decreasing efficacy.
  • Phenytoin: lowers lamotrigine levels, requiring dose adjustment.
  • Phenobarbital: decreases lamotrigine exposure, may necessitate higher dosing.

Moderate Interactions (Monitor Closely)

  • Oral contraceptives: may reduce lamotrigine levels, monitor seizure control.
  • Selective serotonin reuptake inhibitors (SSRIs): additive central nervous system effects possible.
  • Non‑steroidal anti‑inflammatory drugs (NSAIDs): rare reports of enhanced skin reactions.

Frequently Asked Questions

Lamictal (lamotrigine) is prescribed for the management of epilepsy, including focal and generalized seizures, and for bipolar disorder as a mood stabiliser to prevent depressive episodes. It is used in both adult and paediatric populations where clinically appropriate.

Lamotrigine blocks voltage‑gated sodium channels on neuronal membranes, keeping them in an inactive state. This reduces the release of excitatory neurotransmitters such as glutamate, which helps to stabilise neuronal firing and diminishes seizure activity and mood fluctuations.

The dosage of Lamictal is individualised by the prescribing clinician based on the patient’s condition, age, concomitant medications and response. Initial doses are typically low and are titrated upward to achieve therapeutic effect while minimising side‑effects.

The safety of lamotrigine in pregnancy and lactation is not fully established. It is classified as pregnancy category unknown, and clinicians weigh potential benefits against risks. Women who are pregnant or planning pregnancy should discuss alternatives and monitoring strategies with their healthcare provider.

To request Lamictal, submit an enquiry on the product page at gnhindia.com specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any necessary import documentation.

Compared with other anticonvulsants, lamotrigine offers a favourable profile for mood stabilisation and has a lower risk of cognitive side‑effects. However, it carries a risk of serious skin reactions, especially when combined with valproic acid, and requires careful titration, unlike some agents that have fixed dosing.

Lamictal should be stored at room temperature, below 25 °C, in its original packaging. Keep the tablet bottle tightly closed, protect it from moisture and direct sunlight, and store out of reach of children.

Lamictal is taken orally, usually as a tablet, with or without food. The exact timing and frequency are determined by the prescriber, who may advise taking the medication at the same time each day to maintain steady blood levels.

The most serious risks include severe skin reactions such as Stevens‑Johnson syndrome or toxic epidermal necrolysis, blood dyscrasias, hepatic failure, and the emergence of suicidal thoughts or behaviours. Immediate medical attention is required if any of these symptoms appear.

Lamictal is contraindicated in individuals with a known hypersensitivity to lamotrigine or any of its excipients. Patients with a history of severe skin reactions to other medications should use it with caution, and it should be avoided in those taking interacting drugs without appropriate dose adjustments.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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