Gabapin 300 Capsule manufactured by Intas Pharmaceuticals Ltd contains Gabapentin (300mg). Check more about its composition, uses, side-effects, price, precautions, drug interactions, expert advice and warnings. Know everything about Gabapin 300 Capsule including its uses, benefits, dosage, and side effects. Compare prices and find affordable substitutes online at Zeelab Pharmacy. Gabapin 300 MG Capsule is an antiepileptic medicine used to treat nerve pain and epilepsy. It can cause side effects like dizziness, fatigue, and mood changes. Learn more about its composition, dosage, substitutes, and warnings. Gabapin- 300 Capsule contains Gabapentin, which works by calming overactive nerve signals in the brain. This helps reduce nerve pain and lowers the risk of seizures.