What is the most important information I should know about gabapentin (Neurontin)?

You should not use this medication if you are allergic to gabapentin.

Before taking gabapentin, tell your doctor if you have kidney, liver, or heart disease.

You may have thoughts about suicide while taking gabapentin. Your doctor will need to check you at regular visits. Do not miss any scheduled appointments.

Report any new or worsening symptoms to your doctor, such as: mood or behavior changes, anxiety, depression, or if you feel agitated, hostile, restless, hyperactive (mentally or physically), or have thoughts about suicide or hurting yourself.

Do not stop taking gabapentin for seizures without first talking to your doctor, even if you feel fine. You may have increased seizures if you stop using gabapentin suddenly. You may need to use less and less before you stop the medication completely.

Contact your doctor if your seizures get worse or you have them more often while taking gabapentin.

Wear a medical alert tag or carry an ID card stating that you take gabapentin. Any doctor, dentist, or emergency medical care provider who treats you should know that you take seizure medication.