Shingles Home > Additional Information on Gabapentin

What If I Take an Overdose?

People who take too much gabapentin may have overdose symptoms that could include:
  • Coordination problems
  • Difficulty breathing
  • Drooping eyelids
  • Drowsiness
  • Double vision
  • Slurred speech
  • Lethargy
  • Diarrhea.
If you happen to take too much, seek immediate medical attention.
(Click Gabapentin Overdose for more information.)

How Should Gabapentin Be Stored?

Gabapentin should be stored at room temperature, away from moisture and heat. Store the medication in an airtight container.
Keep this and all medications out of the reach of children.

What Should I Do If I Miss a Dose?

If you do not take your gabapentin as scheduled, take your missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose.

Available Strengths

Gabapentin is available in the following strengths and forms:
  • Gabapentin 100 mg capsules
  • Gabapentin 300 mg capsules
  • Gabapentin 400 mg capsules
  • Gabapentin 600 mg tablets
  • Gabapentin 800 mg tablets
  • Gabapentin oral solution 250 mg per 5 mL (equivalent to 250 mg per teaspoonful).

Is There a Generic Version of Gabapentin?

Currently, both brand-name and generic versions of gabapentin are licensed for sale (see Generic Neurontin).
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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