The most common side effects of gabapentin include loss of coordination, unusual eye movements, shaking, dizziness or drowsiness, according to WebMD. Less common side effects may also occur, including mood problems, swelling of the extremities, chest pain, trouble breathing and suicidal thoughts.
In children, the most common side effects of gabapentin are generally mood-related, according to Mayo Clinic. These may include anxiety, restlessness, rapidly changing moods, hyperactivity and depression. Additional common side effects for children are crying, distrust, behavioral problems, poor concentration and overreacting.
There are numerous less common side effects of gabapentin, explains Mayo Clinic. Many side effects do not require medical attention and likely dissipate with additional time. Contact medical personnel immediately for serious side effects.
Side effects that warrant immediate medical attention include unusual tiredness, dark urine, chest pain, change in urine amount and yellowing skin/eyes, explains WebMD. Additional serious side effects are swollen glands and unusual fever. Users of gabapentin should contact a medical professional immediately if any serious allergic reactions occur, such as severe dizziness, trouble breathing, itching/swelling or rash.
Gabapentin is an anticonvulsant medication generally used to help control partial seizures that occur due to epilepsy, according to Mayo Clinic. It is also used to treat postherpetic neuralgia and is sometimes used to treat patients with diabetic peripheral neuropathy. Gabapentin is available as a capsule, tablet, solution and suspension.