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Gabapentin

A medicine for epilepsy and nerve pain.

Clinical information

Common uses

  • epilepsy
  • nerve pain from diabetes, shingles or injury

Common side effects

  • feeling sleepy, tired or dizzy
  • feeling or being sick
  • diarrhoea
  • swollen arms and legs
  • weight gain

Cautions

  • can be addictive — reduce gradually, never stop suddenly
  • may not suit breathing problems such as COPD or severe asthma
  • tell your doctor if you have misused medicines before
  • seek urgent help for thoughts of self-harm

Interactions

  • antacids (take 2 hours apart)
  • strong painkillers such as morphine (more drowsiness)
  • antidepressants such as amitriptyline or fluoxetine
  • antipsychotics such as olanzapine

Pregnancy: not generally recommended — talk to your doctor

Reference information, not medical advice — always follow your doctor or pharmacist. Source: NHS Medicines A–Z, nhs.uk/medicines/gabapentin (accessed 2026-08-16)

Approved brands & formulations10

Brand nameDosage formStrengthImporterCategory
GabaTablet300 mgauthorized medicine importersPOM
Gaba-100Tablet100 mgauthorized medicine importersPOM
GabaleptCapsule300 mgADK Pharmaceutical Company Pvt. LtdPOM
Gabapen 300Tablet300 mg USPauthorized medicine importersPOM
GabapentinTablet400mgPOM
GabapentinTablet300mgPOM
GabapentinTablet100 mgPOM
NeuranCapsule ( Hard gelatin capsule )300 mgHeart Land PharmacyPOM
Penral 100mgCapsule100 mg ( USP )State Trading Organization PlcPOM
Penral 300mgCapsule300 mg ( USP )State Trading Organization PlcPOM
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