I take 1200 mg of gabapentin in divided doses of 400 mg 3 X daily. I have other health issues that make it important for me to maintain a desirable weight. The gabapentin is helping with the anxiety and helping me sleep, but beginning to CREATE some anxiety over the weight gain. Is a lot of weight gain to be expected on this dose of gabapentin? My husband takes 800 mg of gabapentin 3 X daily for fibromyalgia (3 X what I take daily) and has experienced no weight gain. Is weight gain on gabapentin more common in women than men? Does the weight gain mainly take place when beginning the drug and then level off, or will I continue to gain as long as I take it? Thanks for any help.