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 employed to manage certain seizure types and neuropathic pain conditions in adult patients.
GNH India supplies Neurontin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Viatris Pharma Gmbh

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Indications & Clinical Uses

Neurontin (gabapentin) is used across several neurological and pain pathways.

  • Partial seizures: reduces the frequency of focal onset seizures.
  • Postherpetic neuralgia: alleviates chronic pain following shingles.
  • Diabetic peripheral neuropathy pain: diminishes burning and tingling sensations in the limbs.
  • Restless legs syndrome: lessens uncomfortable leg sensations and urges to move.

How It Works

  • Gabapentin binds selectively to the α2δ subunit of voltage‑gated calcium channels in the central nervous system. This binding decreases calcium influx into neurons, which in turn reduces the release of excitatory neurotransmitters such as glutamate, norepinephrine, and substance P, leading to diminished neuronal hyperexcitability associated with seizures and neuropathic pain.

Side Effects

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

Common Side Effects

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

Serious or Rare Side Effects

  • Severe allergic reaction: rash, itching, swelling, or difficulty breathing.
  • Suicidal thoughts: new or worsening depression, anxiety, or suicidal ideation.
  • Acute respiratory depression: especially when combined with central depressants.
  • Hepatic dysfunction: elevated liver enzymes or jaundice.
  • Hematologic abnormalities: thrombocytopenia or leukopenia.

Precautions & Warnings

Before initiating therapy, clinicians should evaluate patient history and monitor for specific risks.

  • Renal function: adjust dose in patients with impaired clearance.
  • CNS depression: avoid concurrent use with alcohol or other sedatives.
  • Pregnancy: assess risk‑benefit ratio as safety data are limited.
  • Breastfeeding: consider potential infant exposure through milk.
  • Elderly: start with lower doses and titrate slowly.
  • Store at ambient temperature: keep below 25°C in the original container, protect from moisture and light.

Avoid Interactions

Gabapentin can interact with several drug classes, requiring attention to dosing and monitoring.

Major Interactions (Avoid)

  • Antacids containing aluminum or magnesium: may reduce gabapentin absorption.
  • Opioids: combined use can increase risk of respiratory depression and sedation.

Moderate Interactions (Monitor Closely)

  • CNS depressants (benzodiazepines, antihistamines): may enhance drowsiness.
  • Anticonvulsants (carbamazepine, phenytoin): may alter gabapentin plasma levels.
  • Diuretics: potential for increased serum creatinine, indicating renal function changes.

Frequently Asked Questions

Neurontin, whose active ingredient is gabapentin, is prescribed for partial (focal) seizures, postherpetic neuralgia, diabetic peripheral neuropathy pain, and restless legs syndrome. It helps control abnormal neuronal firing in seizures and reduces pain signaling in neuropathic conditions.

Gabapentin binds to the α2δ subunit of voltage‑gated calcium channels in the central nervous system. This reduces calcium entry into neurons, leading to decreased release of excitatory neurotransmitters such as glutamate and substance P, which underlies its anticonvulsant and analgesic effects.

The specific dose of Neurontin is individualized by the prescribing clinician based on the patient’s condition, renal function, age, and response to therapy. Dosage adjustments are made during treatment to achieve optimal therapeutic effect while minimizing adverse reactions.

Safety data for gabapentin in pregnancy and lactation are limited. Clinicians should weigh potential benefits against possible risks and consider alternative therapies when appropriate. If used, the patient should be closely monitored, and breastfeeding decisions should be made in consultation with a healthcare professional.

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, and any necessary import documentation.

Gabapentin is a first‑line agent for several neuropathic pain conditions and differs from tricyclic antidepressants or serotonin‑norepinephrine reuptake inhibitors by targeting calcium channel subunits rather than neurotransmitter reuptake. Its side‑effect profile, renal clearance, and lack of significant anticholinergic activity make it a preferred option for many patients.

Neurontin should be stored at ambient temperature, preferably below 25 °C. Keep the product in its original packaging, protect it from moisture and direct sunlight, and ensure the container is tightly closed to maintain stability throughout its shelf life.

Neurontin is taken orally, usually as a tablet or capsule, with or without food. The exact administration schedule—such as once, twice, or three times daily—is determined by the prescriber based on the therapeutic indication and patient-specific factors.

Serious risks include severe allergic reactions (e.g., rash, swelling, difficulty breathing), suicidal thoughts or behavior, and respiratory depression when combined with other central nervous system depressants. Patients should be instructed to seek immediate medical attention if any of these symptoms occur.

Gabapentin is contraindicated in individuals with known hypersensitivity to gabapentin or any of its excipients. Caution is advised for patients with severe renal impairment, as dose adjustments are required, and for those taking other CNS depressants due to an increased risk of sedation.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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