Gabapentin can cause life-threatening breathing problems, especially if you already have a breathing disorder or if you use other medicines that can make you drowsy or slow your breathing. Seek emergency medical attention if you have very slow breathing.
Some people have thoughts about suicide or behavior changes while taking gabapentin. Stay alert to changes in your mood or symptoms. Report any new or worsening symptoms to your doctor.
Do not stop using gabapentin suddenly, even if you feel fine.