Product image of Lamotrigine Svus (Lamotrigine) supplied by GNH India

Lamotrigine Svus

Active Ingredient:
Lamotrigine
Origin:
EU

Lamotrigine Svus (Lamotrigine)

Lamotrigine, the active ingredient in Lamotrigine Svus, is a sodium channel blocker presented as an oral tablet for oral use. It is employed to manage seizure disorders and to stabilize mood in bipolar disorder, targeting patients diagnosed with epilepsy or bipolar I disorder.

GNH India supplies Lamotrigine Svus as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies, clinics and other healthcare providers worldwide, ensuring quality and regulatory compliance across all markets.

Manufacturer / TM Owner

Neuraxpharm Bohemia S.R.O.

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Indications & Clinical Uses

Lamotrigine acts on neuronal sodium channels to control abnormal electrical activity in the brain, making it useful for several neurological and psychiatric conditions.

  • Epilepsy: reduces the frequency and severity of focal and generalized seizures.
  • Bipolar disorder: helps prevent recurrence of mood episodes in patients with bipolar I disorder.
  • Seizure prophylaxis during medication changes: maintains seizure control when other antiepileptic drugs are added or withdrawn.

How It Works

  • Lamotrigine inhibits voltage‑gated sodium channels, stabilizing neuronal membranes and decreasing the release of excitatory neurotransmitters such as glutamate. This reduction in neuronal hyperexcitability underlies its antiepileptic and mood‑stabilising effects, without directly affecting GABAergic pathways.

Side Effects

Lamotrigine is generally well tolerated, but a range of adverse reactions have been reported.

Common Side Effects

  • Dizziness: mild to moderate sensation of light‑headedness.
  • Headache: transient cranial pain.
  • Nausea: occasional upset stomach.
  • Rash: mild skin irritation or erythema.
  • Blurred vision: temporary visual disturbances.
  • Insomnia: difficulty falling or staying asleep.

Serious or Rare Side Effects

  • Stevens‑Johnson syndrome: severe skin reaction requiring immediate medical attention.
  • Toxic epidermal necrolysis: life‑threatening skin detachment.
  • Blood dyscrasias: agranulocytosis or aplastic anemia.
  • Hepatic failure: signs of liver dysfunction.
  • Suicidal thoughts: emergence of depressive or suicidal ideation.
  • Severe skin reactions: drug reaction with eosinophilia and systemic symptoms (DRESS).

Precautions & Warnings

When prescribing or dispensing Lamotrigine, consider the following safety measures.

  • Pregnancy: limited data; use only if potential benefit justifies potential risk.
  • Renal impairment: dose may need adjustment; monitor renal function.
  • Hepatic impairment: monitor liver enzymes and consider dose modification.
  • Concomitant valproate: expect increased lamotrigine plasma levels; avoid high doses.
  • History of severe skin reactions: avoid use due to risk of recurrence.
  • Store at ambient temperature: keep in original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Lamotrigine may interact with several medicines, altering its efficacy or safety.

Major Interactions (Avoid)

  • Valproic acid: markedly increases lamotrigine levels, raising risk of toxicity.
  • Carbamazepine: significantly reduces lamotrigine concentrations, potentially decreasing seizure control.
  • Phenytoin: markedly lowers lamotrigine exposure, compromising therapeutic effect.

Moderate Interactions (Monitor Closely)

  • Oral contraceptives: moderate increase in lamotrigine levels; dose may need adjustment.
  • Rifampin: moderate decrease in lamotrigine exposure; monitor seizure control.
  • Serotonergic agents: moderate risk of serotonin syndrome; observe for symptoms.

Frequently Asked Questions

Lamotrigine Svus is prescribed to treat epilepsy, helping control both focal and generalized seizures, and to manage bipolar I disorder by preventing mood‑episode recurrence. It may also be used during transitions between antiepileptic therapies to maintain seizure control.

Lamotrigine blocks voltage‑gated sodium channels on neurons, which stabilises neuronal membranes and reduces the release of excitatory neurotransmitters such as glutamate. This action diminishes abnormal electrical firing that underlies seizures and mood swings.

The specific dose of Lamotrigine Svus is determined by the prescribing clinician based on the patient’s diagnosis, age, renal and hepatic function, and any concomitant medications. Dosage titration follows established clinical guidelines to minimise adverse effects.

Safety data for lamotrigine in pregnancy are limited, and the drug is classified as pregnancy category unknown. It should only be used if the potential benefit outweighs the risk. Breastfeeding mothers should consult their healthcare provider, as lamotrigine is excreted in breast milk.

To place an order, 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.

Lamotrigine differs from many antiepileptics by primarily targeting sodium channels without significant GABAergic activity. Compared with carbamazepine, it has a lower risk of enzyme‑inducing drug interactions but may require careful monitoring when combined with valproate due to increased plasma levels.

Lamotrigine Svus should be stored at ambient temperature, below 25 °C, in its original packaging. Protect the product from moisture, excessive heat and direct sunlight to maintain potency throughout its shelf life.

Lamotrigine Svus is taken orally, usually as a tablet swallowed with water. It may be taken with or without food, but consistency with meals can help reduce gastrointestinal discomfort. Patients should follow the dosing schedule prescribed by their clinician.

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

Lamotrigine Svus is contraindicated in individuals with a known hypersensitivity to lamotrigine or any component of the formulation, and in patients who have previously experienced severe skin reactions (e.g., Stevens‑Johnson syndrome) to lamotrigine. Caution is also advised for patients with significant hepatic or renal impairment.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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