I'm on 10mg one every night before bed to help with migraines and a trapped nerve in my neck, knocks me put till morning, I am waking up groggy every morning and takes a few hours to wear off! I have noticed I'm drinking a lot more tea from dry mouth, I've been on it just over a month I think, so not sure on weight gain as of yet, my eyesight started to go down hill and now found out I need glasses a the time but my eyesights never been great long distance so could just be down to it getting worse with age now lol