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 tablet for oral use. It treats partial seizures, postherpetic neuralgia and other neuropathic pain conditions in adults.

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

Manufacturer / TM Owner

Upjohn Eesv

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Indications & Clinical Uses

Gabapentin is used to manage conditions involving neuropathic pain and seizure activity.

  • Partial seizures: reduces the frequency of seizure episodes in adults.
  • Postherpetic neuralgia: alleviates persistent pain following shingles.
  • Neuropathic pain: provides analgesic relief in various peripheral neuropathies.
  • Restless legs syndrome: diminishes uncomfortable sensations and urges to move the legs.

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, substance P and norepinephrine. This modulation dampens neuronal hyperexcitability that underlies seizures and neuropathic pain signals.

Side Effects

Common side effects are generally mild to moderate and may resolve with continued therapy.

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.

Serious or Rare Side Effects

  • Suicidal ideation: thoughts of self‑harm requiring immediate medical attention.
  • Severe allergic reactions: including Stevens‑Johnson syndrome or toxic epidermal necrolysis.
  • Respiratory depression: marked slowing of breathing, especially when combined with other depressants.
  • Angioedema: rapid swelling of face, lips, tongue or throat.
  • Blood dyscrasias: rare cases of agranulocytosis or thrombocytopenia.
  • Hepatic failure: signs of liver dysfunction such as jaundice or elevated enzymes.

Precautions & Warnings

Before initiating therapy, consider the following safety measures.

  • Renal function: adjust dose in patients with impaired renal clearance.
  • Pregnancy: use only if the potential benefit justifies the potential risk to the fetus.
  • Elderly: monitor for dizziness and falls due to increased sedation.
  • Concomitant CNS depressants: assess for additive sedation and respiratory effects.
  • Store at room temperature: keep in the original container, protect from moisture and light.

Avoid Interactions

Gabapentin may interact with several drug classes; awareness helps prevent adverse outcomes.

Major Interactions (Avoid)

  • Antacids containing aluminum or magnesium: reduce gabapentin absorption.
  • Opioids: increase risk of respiratory depression and profound sedation.
  • CNS depressants (e.g., benzodiazepines): may cause excessive sedation.

Moderate Interactions (Monitor Closely)

  • Diuretics: may raise gabapentin plasma concentrations.
  • ACE inhibitors: monitor renal function when used together.
  • Alcohol: can enhance central nervous system depressive effects.

Frequently Asked Questions

Neurontin, whose active ingredient is gabapentin, is prescribed for the management of partial (focal) seizures, postherpetic neuralgia, various forms of neuropathic pain and restless legs syndrome. It helps reduce seizure frequency and alleviate chronic pain caused by nerve damage.

Gabapentin binds to the α2δ subunit of voltage‑gated calcium channels in the central nervous system. This binding limits calcium entry into neurons, which in turn decreases the release of excitatory neurotransmitters such as glutamate and substance P, dampening neuronal hyper‑excitability that contributes to seizures and neuropathic pain.

The appropriate dose of Neurontin is individualized by the prescribing clinician based on the specific indication, patient age, renal function and treatment response. Dosage may be started low and titrated upward, but exact amounts should only be determined by a qualified healthcare professional.

Safety data for gabapentin during pregnancy and lactation are limited. It should only be used when the potential therapeutic benefit 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 Neurontin 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 (including any cold‑chain requirements) and necessary import documentation.

The primary alternative to gabapentin is pregabalin, another α2δ‑ligand anticonvulsant. Both share a similar mechanism, but pregabalin often has higher bioavailability and may achieve therapeutic effect at lower doses. Individual response, tolerability, cost and specific regulatory approvals guide the choice between the two agents.

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 avoid storing it in humid environments such as bathrooms.

Neurontin is taken orally, usually with a glass of water. It can be taken with or without food, although taking it with food may reduce gastrointestinal discomfort for some patients. Tablets should be swallowed whole and not crushed or chewed unless specifically instructed by a healthcare professional.

Serious risks include suicidal thoughts or behavior, severe allergic reactions such as Stevens‑Johnson syndrome, respiratory depression (especially when combined with other depressants), angioedema, and rare blood disorders. Patients should seek immediate medical attention if they experience mood changes, rash, swelling of the face or throat, or unexplained bleeding.

Neurontin is contraindicated in patients with known hypersensitivity to gabapentin or any of the tablet excipients. Caution is advised for individuals with severe renal impairment, uncontrolled psychiatric illness, or those taking multiple central nervous system depressants. 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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