Hello and welcome to our board chinamomto,
I'm currently on it to treat abdominal aspects of the migraines I experience. It's been quite effective in getting those under control but hasn't made any difference in my actual head pain. In terms of side effects, it's a Beta blocker so it'll lower your blood pressure and pulse, slow your metabolism, and it can cause some significant fatigue that I understand most people acclimate to (though I'm still struggling after 3 months).
DX: NDPH (2003-present), CRPS (1998-?) Abdominal Migraine (2010-present)
RX: Lamictal, Indomethacin, Propranolol, Provigil, Viibyrd, Oxycontin, Clonazepam, Zyprexa, Melatonin, Magnesium, Boswellia Serrata extract (Boswellic acid)
CPAP for mild sleep apnea