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 effectively treats partial seizures, postherpetic neuralgia, diabetic peripheral neuropathy pain, and restless legs syndrome in suitable patients.

GNH India supplies Neurontin as a licensed, GDP‑compliant international pharmaceutical supplier, providing the product to hospitals, pharmacies, and clinics across Europe and other global markets, ensuring quality and regulatory conformity for patients worldwide.

Manufacturer / TM Owner

Viatris Pharma S.R.L.

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Indications & Clinical Uses

Gabapentin is prescribed to manage several neurological and pain‑related conditions that involve abnormal nerve signaling or hypersensitivity.

  • Partial seizures: reduces seizure frequency when used as adjunct therapy in patients with focal epilepsy.
  • Postherpetic neuralgia: alleviates chronic pain persisting after shingles, improving quality of life.
  • Diabetic peripheral neuropathy: decreases neuropathic pain intensity and improves sensory function in diabetic patients.
  • Restless legs syndrome: improves uncomfortable leg sensations and sleep quality in affected individuals.
  • Peripheral nerve injury pain: reduces neuropathic pain symptoms following nerve trauma or surgery.

How It Works

  • Gabapentin binds selectively to the α2δ subunit of voltage‑gated calcium channels in the central nervous system, decreasing calcium influx into neurons. This action reduces the release of excitatory neurotransmitters such as glutamate, substance P, and norepinephrine, thereby dampening neuronal hyperexcitability and modulating pain signaling pathways.

Side Effects

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

Common Side Effects

  • Dizziness: sensation of light‑headedness or unsteadiness that may affect balance.
  • Somnolence: increased sleepiness or fatigue, especially after the first doses.
  • Peripheral edema: swelling of the lower limbs, often mild but sometimes noticeable.
  • Weight gain: gradual increase in body weight, potentially linked to fluid retention.
  • Dry mouth: reduced salivation leading to a feeling of thirst.

Serious or Rare Side Effects

  • Severe allergic reactions: Stevens‑Johnson syndrome or toxic epidermal necrolysis.
  • Suicidal thoughts: emergence of depression or suicidal ideation.
  • Respiratory depression: slowed breathing, especially when combined with other depressants.

Precautions & Warnings

When prescribing gabapentin, clinicians should consider several safety factors.

  • Renal impairment: dose adjustment may be required to avoid accumulation.
  • Pregnancy: category B; use only if the potential benefit justifies the potential risk.
  • Elderly patients: monitor closely for increased sedation and falls.
  • Concomitant CNS depressants: may enhance drowsiness and respiratory effects.
  • Store at ambient temperature: keep in the original pack, protect from moisture.

Avoid Interactions

Gabapentin can interact with other medicines, necessitating careful management.

Major Interactions (Avoid)

  • Antacids containing aluminum or magnesium: reduce gabapentin absorption.
  • Opioids: increased risk of respiratory depression.
  • CNS depressants (benzodiazepines, alcohol): additive sedation and impairment.

Moderate Interactions (Monitor Closely)

  • Diuretics: may increase gabapentin plasma levels.
  • ACE inhibitors: monitor renal function during combined use.
  • Carbamazepine: may decrease gabapentin efficacy.

Frequently Asked Questions

Neurontin is the brand name for gabapentin, an oral medication used to treat partial seizures, postherpetic neuralgia, neuropathic pain associated with diabetic peripheral neuropathy, and restless legs syndrome. It works as an adjunct therapy for epilepsy and helps relieve chronic pain conditions caused by nerve damage.

Gabapentin binds to the α2δ subunit of voltage‑gated calcium channels in the central nervous system. This binding reduces calcium influx into neurons, which in turn lowers the release of excitatory neurotransmitters such as glutamate and substance P. The result is decreased neuronal excitability and reduced transmission of pain signals.

The appropriate dose of Neurontin is individualized and set by a qualified prescriber based on the specific indication, patient age, renal function, and response to therapy. Dosage adjustments may be needed for patients with impaired kidney function or when used in combination with other central nervous system depressants.

Gabapentin is classified as Pregnancy Category B, indicating that animal studies have not shown risk to the fetus and there are no well‑controlled studies in pregnant women. It may be used during pregnancy only if the potential benefit justifies any potential risk. Gabapentin is excreted in breast milk, so breastfeeding decisions should be made in consultation with a healthcare professional.

To request Neurontin, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India supplies hospitals, pharmacies, and procurement teams across international markets. After the enquiry, the sales team will verify trade or institutional credentials, then provide pricing, availability, shipping details (including any required temperature control), and assist with import documentation.

The primary alternative to gabapentin is pregabalin, another gabapentinoid with a similar mechanism of action. Pregabalin generally has higher bioavailability and may achieve therapeutic effects at lower doses, but both drugs share comparable efficacy for neuropathic pain and seizure control. Individual response, tolerability, and cost considerations often guide the choice between them.

Neurontin tablets should be stored at ambient temperature, below 25 °C, in the original container to protect them from moisture and light. Keep the product out of reach of children and do not use after the expiration date printed on the packaging.

Neurontin is supplied as oral tablets that are swallowed whole with a glass of water. It can be taken with or without food, although taking it with food may reduce gastrointestinal upset in some patients. The exact timing and frequency are determined by the prescribing clinician.

Serious risks include the development of suicidal thoughts or behavior, severe allergic reactions such as Stevens‑Johnson syndrome, and respiratory depression, especially when combined with other central nervous system depressants. Patients should seek immediate medical attention if they notice rash, mood changes, or difficulty breathing.

Neurontin should not be used by individuals with a known hypersensitivity to gabapentin or any of the tablet excipients. Caution is advised in patients with severe renal impairment who have not had dose adjustments, and in those taking multiple CNS depressants without close monitoring. Pregnant or breastfeeding women should only use it when clearly indicated by a healthcare professional.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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