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, neuropathic pain and restless legs syndrome in appropriate patients.

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

Manufacturer / TM Owner

Viatris Healthcare Limited

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Indications & Clinical Uses

  • Gabapentin is used to manage neurological and pain conditions that involve abnormal neuronal excitability.
  • Partial seizures: reduces seizure frequency and severity.
  • Postherpetic neuralgia: alleviates chronic pain following shingles.
  • Neuropathic pain: relieves pain associated with diabetic neuropathy and other nerve injuries.
  • Restless legs syndrome: decreases uncomfortable sensations and the urge 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. This reduces the release of excitatory neurotransmitters such as glutamate, substance P and norepinephrine, thereby dampening neuronal hyper‑excitability and pain signaling.

Side Effects

Gabapentin may cause a range of adverse reactions.

Common Side Effects

  • Dizziness
  • Somnolence
  • Fatigue
  • Peripheral edema
  • Nausea
  • Weight gain

Serious or Rare Side Effects

  • Stevens‑Johnson syndrome or toxic epidermal necrolysis
  • Anaphylactic reactions
  • Suicidal thoughts or behavior
  • Respiratory depression, especially with concomitant CNS depressants
  • Angioedema
  • Severe hematologic abnormalities such as agranulocytosis

Precautions & Warnings

  • When prescribing gabapentin, clinicians should consider several safety measures.
  • Assess renal function: adjust dose in patients with renal impairment.
  • Monitor for mood changes: watch for depression or suicidal ideation.
  • Avoid abrupt discontinuation: taper the dose to prevent withdrawal symptoms.
  • Use caution in elderly: increased sensitivity to central nervous system effects.
  • Pregnancy: limited data; discuss risks and benefits with the patient.
  • Store at room temperature: keep in the original container, protect from moisture.

Avoid Interactions

Gabapentin can interact with other medicines, requiring attention to avoid adverse outcomes.

Major Interactions (Avoid)

  • Antacids containing aluminum or magnesium: reduce gabapentin absorption.
  • Opioids, benzodiazepines, or other CNS depressants: increase sedation and respiratory depression.
  • Morphine: may enhance respiratory depression.
  • Alcohol: additive central nervous system depression.
  • HIV protease inhibitors: increase gabapentin plasma levels.

Moderate Interactions (Monitor Closely)

  • NSAIDs: may increase risk of renal dysfunction.
  • Diuretics: monitor electrolytes and renal function.
  • ACE inhibitors or ARBs: watch for renal impairment.
  • Carbamazepine: may reduce gabapentin efficacy.
  • SSRIs or other antidepressants: monitor for enhanced CNS effects.

Frequently Asked Questions

Neurontin, containing gabapentin, is prescribed for partial seizures, postherpetic neuralgia, various forms of neuropathic pain and restless legs syndrome. It helps control abnormal neuronal firing and reduces pain signals in these conditions.

Gabapentin binds to the α2δ subunit of voltage‑gated calcium channels in the central nervous system, limiting calcium entry into neurons. This action decreases the release of excitatory neurotransmitters, thereby dampening neuronal hyper‑excitability and pain transmission.

The appropriate dose of Neurontin is determined by the prescribing clinician based on the patient’s condition, age, renal function and response to therapy. Dosage regimens vary and should be individualized by a qualified healthcare professional.

Safety data for gabapentin during pregnancy and lactation are limited. It should only be used if the potential benefit justifies any potential risk to the fetus or infant, and the decision should be made in consultation with a healthcare provider.

To order Neurontin, submit an enquiry on the product page at gnhindia.com specifying the required quantity. GNH India supplies hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and necessary import documentation.

The primary alternative to gabapentin is pregabalin, another α2δ calcium‑channel ligand. Both have similar mechanisms, but pregabalin often has higher potency and may require lower doses. Side‑effect profiles are comparable, though individual tolerability can differ.

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

Neurontin is administered orally, with or without food, as tablets. Patients should swallow the tablets whole with water and follow the dosing schedule prescribed by their healthcare professional.

Serious risks include severe skin reactions such as Stevens‑Johnson syndrome, anaphylaxis, respiratory depression (especially when combined with other CNS depressants), and emergence of suicidal thoughts or behaviors. Immediate medical attention is required if any of these occur.

Neurontin should be avoided in individuals with known hypersensitivity to gabapentin or any tablet excipients, and in patients with severe renal impairment where dose adjustment is not feasible. Clinicians should also exercise caution in patients with a history of mood disorders.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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