Cons (side effects): dizziness (and have bilateral Meniere's, so very much not appreciated), dry mouth, sleepiness unless I only take 1mg (which doesn't really do anything during a flare), blurred vision - this kicks in after 6 or 7 days taking between 2 and 4mg 3x day when sciatica from L4-5 herniated discs/piriformis syndrome uber flares and I'm in screaming pain, can't walk - right leg is DONE (no reflex R knee, drop foot when it goes full tilt), back spasm, butt cramps/spasms. Once I start getting some relief & can get more stretches/exercises/a bit of walking without the walker, I will cut back on doses & vision is OK. Until then, will take full needed dose and wait a couple hours for it to kick in and blurry eyes to lessen; being already disabled I'm home and do not drive anyway. This isn't a cure, it's a help, with the back, leg/foot, fibromyalgia, whatever needs relaxing. Unless you're having big reactions, try taking it, make sure you're doing anything else your doc, PT person tell you - stretch gently, exercise, try to get out for even a short slow walk if you can. Don't lay in bed unless it's prescribed - for back disc/sciatica it makes things worse to stay in bed (and I know how bad it hurts all too well). I can't/won't get epidural shots - allergic to steroids, scared of needles (in general, and specially) near my spine, watched friends & neighbors go through them and get no relief or get worse! I'll stick with pain meds, zanaflex (generic STILL! $288 for 30 day supply! - thieves), homeopathic leg/back cramp tonic, external rubs/patches and the stretching and tiny bit of exercises and once around the block with the walker walking until I get this under control ... again.Read More Read Less