I take nortryptoline 40 mg at bedtime for prevention of migraines. I also take Imitrex (sumatriptan) 50 mg once I get a migraine, which can be anywhere from 1 to 3 times a week. I need to lose 100 lbs and I am unable to exercise due to degenerative disc disease (and 2 spinal surgeries) and bad knees. What can happen if I take Belviq with the sumatriptan? And will the benefits be worth the risk? Thank you.