Product image of Neurontin (Gabapentin) supplied by GNH India

Neurontin

Active Ingredient:
Gabapentin
Origin:
EU

Neurontin (Gabapentin)

Gabapentin, the active ingredient in Neurontin, is a gabapentinoid presented as an oral tablet for oral use. It is used as an adjunctive therapy for partial seizures and to relieve neuropathic pain conditions such as postherpetic neuralgia and restless legs syndrome.

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

Manufacturer / TM Owner

Viatris Healthcare Lda.

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Indications & Clinical Uses

Neurontin (gabapentin) acts on the nervous system to manage seizure activity and neuropathic pain conditions.

  • Partial seizures: reduces seizure frequency when added to existing antiepileptic therapy.
  • Postherpetic neuralgia: alleviates chronic pain following shingles.
  • Neuropathic pain: improves pain control in diabetic and other peripheral neuropathies.
  • Restless legs syndrome: diminishes uncomfortable sensations and urges to move the legs.

How It Works

  • Gabapentin binds selectively to the α2δ subunit of voltage‑gated calcium channels in neuronal membranes, decreasing calcium influx and thereby reducing the release of excitatory neurotransmitters such as glutamate, norepinephrine and substance P. This modulation dampens neuronal hyperexcitability that underlies seizures and neuropathic pain signals.

Side Effects

Gabapentin is generally well tolerated, but a range of adverse reactions can occur.

Common Side Effects

  • Dizziness: sensation of light‑headedness or unsteadiness.
  • Somnolence: increased sleepiness or fatigue.
  • Peripheral edema: swelling of the lower limbs.
  • Ataxia: impaired coordination and balance.
  • Visual disturbances: blurred vision or double vision.
  • Weight gain: modest increase in body weight.

Serious or Rare Side Effects

  • Suicidal ideation: thoughts of self‑harm requiring immediate evaluation.
  • Severe skin reactions: Stevens‑Johnson syndrome or toxic epidermal necrolysis.
  • Angioedema: rapid swelling of face, lips or throat.
  • Hematologic abnormalities: anemia, leukopenia or thrombocytopenia.
  • Respiratory depression: especially when combined with other CNS depressants.
  • Hepatic dysfunction: elevated liver enzymes or hepatitis.

Precautions & Warnings

When prescribing gabapentin, clinicians should consider patient‑specific factors and monitor for safety.

  • Renal impairment: dose adjustment may be required due to reduced clearance.
  • Pregnancy: use only if the potential benefit justifies the potential risk to the fetus.
  • Elderly patients: monitor for falls and increased sedation.
  • Concomitant CNS depressants: risk of enhanced drowsiness and respiratory depression.
  • Abrupt discontinuation: taper the dose to avoid withdrawal symptoms such as anxiety or seizures.
  • Store at ambient temperature below 25°C: keep in the original pack, protect from moisture.

Avoid Interactions

Gabapentin can interact with several drug classes, influencing efficacy or safety.

Major Interactions (Avoid)

  • Antacids containing aluminum or magnesium: may markedly reduce gabapentin absorption.
  • Opioids: combined use can increase risk of respiratory depression and profound sedation.
  • Alcohol: potentiates central nervous system depression.

Moderate Interactions (Monitor Closely)

  • Benzodiazepines and other sedatives: monitor for additive sedation.
  • NSAIDs: may increase risk of renal impairment, especially in patients with pre‑existing kidney disease.
  • ACE inhibitors or ARBs: watch for alterations in potassium balance and renal function.

Frequently Asked Questions

Neurontin, whose active ingredient is gabapentin, is prescribed as an adjunctive treatment for partial seizures and to manage neuropathic pain conditions such as postherpetic neuralgia, diabetic peripheral neuropathy, and restless legs syndrome. It helps reduce seizure frequency and alleviate chronic pain associated with nerve damage.

Gabapentin binds to the α2δ subunit of voltage‑gated calcium channels on neurons, limiting calcium entry and decreasing the release of excitatory neurotransmitters. This action dampens neuronal hyper‑excitability, which underlies both seizure activity and the transmission of neuropathic pain signals.

The specific dose of Neurontin is determined by the prescribing clinician based on the individual’s medical condition, age, renal function and response to therapy. Dosage regimens are personalized and should follow the prescriber’s instructions without deviation.

Safety data for gabapentin in pregnancy and lactation are limited. It should only be used if the potential benefit to the mother outweighs any possible risk to the fetus or infant. Women who are pregnant, planning pregnancy, or breastfeeding should discuss risks and alternatives with their healthcare provider.

To place an order, submit an enquiry on the product page at gnhindia.com, specifying the required quantity of Neurontin. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain requirements) and necessary import documentation.

Compared with other anticonvulsants, gabapentin offers a distinct mechanism by targeting calcium channel subunits, which can be advantageous for patients who do not respond to sodium‑channel blockers. In neuropathic pain, it is often preferred for its favorable tolerability profile, though efficacy may vary among individuals and other agents such as pregabalin or duloxetine may be considered based on clinical response.

Neurontin should be stored at ambient temperature below 25 °C, protected from moisture and light. Keep the tablets in the original packaging until use, and avoid storing them in humid environments such as bathrooms or near heat sources.

Neurontin is taken orally, usually with or without food, as prescribed by the treating physician. The tablets are swallowed whole with a glass of water. Patients should follow the dosing schedule provided by their healthcare professional and not crush or split extended‑release formulations unless instructed.

Serious risks include suicidal thoughts or behavior, severe skin reactions such as Stevens‑Johnson syndrome, angioedema, respiratory depression (especially when combined with other CNS depressants), and rare hematologic abnormalities. Any sudden changes in mood, rash, swelling of the face or difficulty breathing should prompt immediate medical attention.

Neurontin is contraindicated in patients with known hypersensitivity to gabapentin or any of its excipients. Caution is advised for individuals with severe renal impairment, uncontrolled psychiatric disorders, or those who are pregnant without a clear benefit. Clinicians should evaluate each patient’s medical history before initiating therapy.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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