Product image of Neurontin (Gabapentin) supplied by GNH India

Neurontin

Active Ingredient:
Gabapentin
Origin:
EU

Neurontin (Gabapentin)

Gabapentin, the active ingredient in Neurontin, is an anticonvulsant presented as an oral formulation for oral use. It is prescribed for partial seizures, postherpetic neuralgia, neuropathic pain, and restless legs syndrome in adult patients when other therapies are insufficient and is often used as part of combination therapy.

GNH India supplies Neurontin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with a focus on quality assurance and regulatory compliance throughout Europe.

Manufacturer / TM Owner

Viatris Healthcare Nv/Sa

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Indications & Clinical Uses

  • Gabapentin is used to manage neurological and pain‑related conditions that involve abnormal neuronal excitability.
  • Partial seizures: reduces seizure frequency in patients with focal epilepsy.
  • Postherpetic neuralgia: alleviates chronic pain following shingles.
  • Neuropathic pain: diminishes pain intensity in diabetic or peripheral nerve injury.
  • Restless legs syndrome: improves uncomfortable leg sensations and urges to move.

How It Works

  • Gabapentin binds to the α2δ subunit of voltage‑gated calcium channels in central nervous system neurons, decreasing calcium influx and thereby reducing the release of excitatory neurotransmitters such as glutamate, norepinephrine and substance P. This modulation dampens neuronal hyperexcitability associated with seizures and neuropathic pain pathways.

Side Effects

Adverse reactions may occur with gabapentin therapy.

Common Side Effects

  • Dizziness: sensation of light‑headedness or unsteadiness.
  • Somnolence: increased sleepiness or fatigue.
  • Peripheral edema: swelling of the lower extremities.
  • Visual disturbances: blurred vision or double vision.
  • Weight gain: modest increase in body weight.
  • Gastrointestinal upset: nausea or constipation.

Serious or Rare Side Effects

  • Severe skin reactions: Stevens‑Johnson syndrome or toxic epidermal necrolysis.
  • Suicidal ideation: emergence of depressive thoughts or self‑harm.
  • Respiratory depression: especially when combined with other CNS depressants.
  • Anaphylaxis: rare but potentially life‑threatening allergic response.
  • Blood dyscrasias: thrombocytopenia or leukopenia.

Precautions & Warnings

  • Patients should be evaluated for specific risk factors before initiating gabapentin therapy.
  • Renal function: adjust dose in patients with impaired kidney function.
  • Pregnancy: risk unknown; prescribe only if potential benefit justifies potential fetal risk.
  • Elderly: monitor for falls, confusion and increased sedation.
  • Concomitant CNS depressants: may enhance sedative effects; use caution.
  • Avoid abrupt discontinuation: taper dose gradually to prevent withdrawal symptoms.
  • Store at room temperature: keep in the original pack, protect from moisture.

Avoid Interactions

Gabapentin may interact with several medicines, requiring attention to avoid adverse outcomes.

Major Interactions (Avoid)

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

Moderate Interactions (Monitor Closely)

  • Benzodiazepines: additive sedative effect, monitor drowsiness.
  • Diuretics: may raise gabapentin plasma concentrations.
  • ACE inhibitors: monitor renal function and electrolytes.
  • Carbamazepine: may lower gabapentin efficacy, consider dose adjustment.

Frequently Asked Questions

Neurontin (gabapentin) is prescribed for partial (focal) seizures, postherpetic neuralgia, various forms of neuropathic pain such as diabetic peripheral neuropathy, and restless legs syndrome. It is used when these conditions are not adequately controlled by other therapies.

Gabapentin binds to the α2δ subunit of voltage‑gated calcium channels in neurons, reducing calcium influx. This limits the release of excitatory neurotransmitters like glutamate and substance P, which helps to calm hyper‑excitable nerve pathways involved in seizures and pain.

The appropriate dose of Neurontin is individualized by the prescribing clinician based on the patient’s condition, renal function, age and response to therapy. Dosing regimens can vary widely, so patients should follow the specific instructions provided by their healthcare professional.

Safety data for gabapentin in pregnancy and lactation are limited. It should only be used when 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 with their doctor.

To request Neurontin, 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.

Neurontin (gabapentin) and its analogue pregabalin share a similar mechanism but differ in potency and dosing frequency. Gabapentin is often less expensive but may require higher doses. Compared with tricyclic antidepressants or duloxetine, gabapentin has a lower risk of anticholinergic side effects but can cause more sedation.

Neurontin should be stored at room temperature, below 25 °C, in its original packaging to protect it from moisture and light. Keep the product out of reach of children and do not store in bathrooms or other humid environments.

Neurontin is taken orally, usually with or without food. Tablets should be swallowed whole with a full glass of water. The dosing schedule (once, twice or three times daily) is determined by the prescriber based on the therapeutic indication and patient factors.

Serious risks include severe skin reactions such as Stevens‑Johnson syndrome, suicidal thoughts or behavior, respiratory depression when combined with other CNS depressants, and rare blood disorders like thrombocytopenia. Patients should seek immediate medical attention if they notice rash, mood changes, or breathing difficulties.

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 depression, or a history of serious allergic reactions. Pregnant or breastfeeding women should only use it under strict medical supervision.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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