Lamictal

Lamotrigine, the active ingredient in Lamictal, is an anticonvulsant presented as an oral tablet for oral use. It is used to manage seizures in epilepsy and to stabilize mood in bipolar disorder in adults and adolescents.

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

Lamotrigine is an anticonvulsant that acts on neuronal excitability to control seizure activity and mood swings. - Epilepsy: reduces the frequency and severity of focal and generalized seizures. - Bipolar disorder: helps prevent recurrence of depressive and manic episodes. - Seizure types: effective for both partial seizures and primary generalized tonic‑clonic seizures.

Lamotrigine may cause a range of adverse reactions, most of which are mild to moderate.

Common Side Effects: - Dizziness: sensation of light‑headedness or unsteadiness. - Headache: mild to moderate cranial pain. - Nausea: feeling of stomach upset or urge to vomit. - Rash: mild skin redness or itching. - Insomnia: difficulty falling or staying asleep. - Blurred vision: temporary visual disturbances.

Serious or Rare Side Effects: - Stevens‑Johnson syndrome: severe skin reaction with blistering. - Toxic epidermal necrolysis: life‑threatening skin detachment. - Blood dyscrasias: abnormal blood counts such as agranulocytosis. - Hepatic failure: significant liver enzyme elevation or liver injury. - Anaphylaxis: acute, potentially fatal allergic reaction.

Before initiating lamotrigine therapy, consider the following safety measures. - Monitor skin reactions: discontinue immediately if a severe rash develops. - Assess liver function: check hepatic enzymes in patients with liver disease. - Adjust dose with enzyme inducers: increase lamotrigine dose when co‑administered with carbamazepine or phenytoin. - Avoid abrupt discontinuation: taper gradually to reduce seizure risk. - Pregnancy: discuss potential risks with the prescriber, as safety data are limited. - Store at ambient temperature: keep in the original packaging, protect from moisture and direct sunlight.

Lamotrigine interacts with several medicines that can alter its plasma concentration.

Major Interactions (Avoid): - Valproic acid: markedly increases lamotrigine levels, raising risk of serious skin reactions. - Strong CYP3A4 inhibitors (e.g., ketoconazole): may elevate lamotrigine concentrations.

Moderate Interactions (Monitor Closely): - Carbamazepine, phenytoin, phenobarbital: induce metabolism, reducing lamotrigine exposure. - Oral contraceptives: increase lamotrigine clearance, possibly decreasing efficacy. - Other antiepileptic drugs (e.g., topiramate): may require dose adjustments based on therapeutic monitoring.