It is possible to experience not only diarrhea, but also symptoms like nausea or constipation while on gabapentin. Some people also report heartburn as a side effect. Unless the gastrointestinal symptoms become severe, doctors will often recommend changes in diet to combat them while on gabapentin.

Gabapentin has also been associated with a number or unwanted effects which affect the blood, pancreas and liver. Persistent stomach pain with sickness could be a symptom of an inflamed pancreas. A skin rash or swelling on the mouth or face could be a symptom of an allergic reaction.

back pain


Gabapentin is a drug used to treat nerve pain. It can be used in combination with other pain killers to improve pain relief. It works by changing the way in which nerves send messages to your brain. When something presses on a nerve, or when the nerve doesn’t work properly in some way, the nerve can send false messages to your brain. The brain thinks that a part of your body is being hurt when it is not. This makes you actually feel pain. By altering the way nerves work, gabapentin may reduce your pain.

Research has shown that gabapentin has efficacy in treatment of neuropathic pain and spasticity in patients with MS. However, the research show that there is lack of efficacy in prescribing gabapentin for chronic lower back pain.

Gabapentin has effects in similar brain pathways to those that are affected by drugs like benzodiazepine. It can cause dizziness, forgetfulness, drowsiness and confusion. Gabapentin commonly causes diarrhea, constipation, vomiting and feeling of wanting to vomit, tremors, flatulence, increase in blood pressure, weight gain.