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SingleCareWhat to Avoid When Taking Gabapentin

It’s crucial that your patients are aware of these interactions in order to take this well-known drug safely.


Gabapentin, the 7th most commonly prescribed medication in the US as of 2022, is a versatile drug approved to treat various conditions from postherpetic neuralgia to restless legs syndrome. However, being familiar with its mechanisms, potential drug interactions, and factors to avoid while on this medication is crucial for its effective and safe use.

Key Points:

  • Gabapentin is an FDA-approved medication used to treat postherpetic neuralgia, epilepsy-induced partial seizures, and moderate to severe restless legs syndrome.
  • The drug is also prescribed off-label for other conditions including nerve pain due to diabetes, anxiety, resistant depression and mood disorders, insomnia, IBS, alcohol use disorder, PTSD, fibromyalgia, and migraine.
  • Gabapentin works by altering neurotransmitters in the brain, reducing nerve cell excitability, and blocking pain signals.
  • Benefits of gabapentin can be seen within the first week of use, but significant improvements may take up to a month.
  • Side effects of gabapentin include dizziness, sleepiness, tremors, drowsiness, weakness, dehydration, trouble with movements, weight gain, and certain gastrointestinal issues.

Additional Points:

  • When taking gabapentin, avoid alcohol, central nervous system depressants, certain vitamins and supplements, antacids, dehydration, and excessive caffeine intake.
  • For epilepsy patients, avoid ginkgo biloba as it may reduce gabapentin’s anticonvulsive effects.
  • Always inform your healthcare provider about any medication, vitamins, or supplements you’re taking to prevent potential adverse interactions.
  • The method of gabapentin intake may vary depending on the specific formulation and the condition it is prescribed for.

Conclusion:

  • Talk to your patients to provide guidance on how to use gabapentin effectively. Adverse reactions or severe side effects should be reported immediately, and changes in regimen should not be made without your knowledge.

All Specialties Further Reading

“Alcohol is a central nervous system depressant and impairs a person’s cognitive function, processing speed, mobility, and gait. Gabapentin does most of these things as well. So drinking alcohol while taking gabapentin will result in additive or synergistic impairment.”

Kobi Nathan, Pharm.D.
Founder of Geriatric Academy
Rochester, New York
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