Epilepsy Home > Neurontin Dosage

Among the factors that affect a person's dosage of Neurontin are the condition being treated and the patient's age and weight. For example, when prescribing the drug to a child, weight is a significant factor. When giving the drug to adults and children over 12 years old, guidelines recommend a starting dose of 300 mg, taken either once or three times a day, with increases in this amount as necessary.

Neurontin Dosing: An Introduction

The dosage of Neurontin® (gabapentin) that your healthcare provider recommends will vary depending on a number of factors, including:
  • Your age and weight
  • The medical condition being treated
  • Other medications you may be taking
  • Other medical conditions you may have.
As is always the case, do not adjust your dosage unless your healthcare provider specifically instructs you to do so.


The recommended starting dosage of Neurontin for controlling partial seizures in adults and adolescents over 12 years old is Neurontin 300 mg three times daily. If necessary, your healthcare provider may increase your dose, up to a maximum of 800 mg three times daily, until your seizures are under control.
For children ages 3 to 12 years old, your child's healthcare provider will calculate the correct dosage based on your child's weight. Your child's healthcare provider may increase this dose as necessary for seizure control. For example, as your child grows, dosage increases may be necessary.
It is important to understand that Neurontin is approved to treat seizures only when used in combination with other seizure medications. Also, if you have kidney disease, you may need a lower Neurontin dose.

Postherpetic Neuralgia

When treating postherpetic neuralgia (chronic nerve pain following an episode of shingles), the recommended starting amount is Neurontin 300 mg taken once on the first day, Neurontin 300 mg taken twice daily on the second day, and Neurontin 300 mg taken three times daily on the third day. In order to control your pain, your healthcare provider may further increase your dose as necessary.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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