Was debilitated with sciatica pain and my general practitioner (after careful consideration, research for interaction, and discussion) carefully prescribed gabapentin 300 mg once a day. My PD meds are carbidopa/levodopa, comtan and mirapex. (Mirapex was the possible interaction). Within two hours of taking the one AND ONLY capsule I will ever take, I had double vision, a migraine complete with nausea, diarhea (sp?), and felt like a walking zombie. It took two days to rid my body of the effects of that med. Now, back to the same problem - debilitating sciatica. Any ideas?