What are the side effects of migranil?

what i know about migranil is that it works by restricting your body veins and that includes the arteries in your heart so u have to be careful using it specially if u have heart problems, also it can cause tingling sensation in the hands and feet and also making you feel cold (specially hand and feet too). If you use it daily it causes rebound headaches, which are really painful and difficult to get rid of. If you r pregnant dont use it, its category X and causes the uterus to contract, putting the fetus at risk of abortion.