Gabapentin 100 mg is a commonly indicated medicine for seizures and in relieving nerve related pains, for instance those caused by shingles or diabetic neuropathy. Gabapentin works on neurotransmitters in the brain and reduces the overactivity of the nervous system responsible for stressful activities like seizures or their pain. Gabapentin is effective in alleviating symptoms and controlling seizures but as with any medication, it does not completely relieve all symptoms of every individual. For some, there are side effects, such as drowsiness or dizziness, that may be experienced. Their physician should be consulted if there are any questions or issues regarding gabapentin.