If you just started losing your hair and still have alot of coverage you should first probably try out propecia alone and then after a year or so add Rogaine. Get checked out by a doctor to ensure it is male pattern baldness.
I have been taking multi-vitamins forever and have been on Propecia for over 5 years I haven't experienced any side effects but everyone is different......according to the experts only a very small percentage of men experience any side effects. Here in Canada Propecia goes for about 60-70...