What other drugs will affect gabapentin?
Gabapentin does not interact with other commonly used antiseizure medications. Antacids will decrease the amount of gabapentin that is absorbed in the stomach. Do not take gabapentin for at least 2 hours after a dose of antacid. Gabapentin may increase the effects of other drugs that cause drowsiness, including antidepressants, alcohol, antihistamines, sedatives (used to treat insomnia), pain relievers, anxiety medicines, and muscle relaxants.