Gabapentin is a medication in a class of drugs known as anticonvulsants. According to Drugs.com, gabapentin affects chemicals and nerves in the body that are involved in the cause of seizures and some types of pain. It is used in the treatment of epilepsy and partial seizure disorder in both adults and children. Gabapentin may be used alone or in conjunction with other medications.
Dizziness, Drowsiness and Fatigue
Gabapentin may cause dizziness, drowsiness and fatigue. These side effects may diminish over time as the body adjusts to the medication. Patients should use extreme caution while operating a vehicle or hazardous machinery until they know how this medication will affect them. Severe dizziness, drowsiness or fatigue should be reported to a physician.
Depression and Suicidal Thoughts
Some patients taking gabapentin have experienced new or worsening depression and suicidal thoughts. These side effects may be more likely to occur in the first few months of treatment or following a change in dosage. Patients should be under the close supervision of a physician during these times. Those who experience symptoms of depression or thoughts about suicide should seek immediate medical attention.
Gastrointestinal Discomfort
Patients taking gabapentin may experience gastrointestinal discomfort. According to Drugs.com, symptoms may include dry mouth, nausea, vomiting, stomach pain, loss of appetite, diarrhea and constipation. Taking gabapentin with meals may help lessen these effects. Patients who experience a loss of appetite may benefit from eating smaller meals more frequently or drinking liquid nutritional shakes to maintain daily nutrient intake and prevent unwanted weight loss. Severe vomiting and diarrhea should be reported to a physician. It can lead to dehydration, which may be dangerous.
Flu-Like Symptoms
Gabapentin may cause flu-like symptoms. Headache, runny nose, sneezing, cough or sore throat may occur, says MedlinePlus. Sleeping with humidified air and using throat lozenges may help to alleviate symptoms. If these symptoms occur in conjunction with fever, swollen lymph nodes, wheezing, difficulty breathing or yellow-green tinged sputum, it may be a sign of an infection that requires medical treatment.
