Rogaine 2

I never used Rogaine foam before but the regular brand I had tried for about a couples months and my hands and feet started to swell and my hart started beating irregular I stop after that and all the symptoms went away. It's funny but I had tried a product called Scalp Med and had got very good results my hair had came back about up to 60% after four months and It was dark. I remember when the product came it had two bottles and one big bottle for the spray and you mix the two with the big one and you have a two month supply. supposedly the product contained minoxidil witch has the same ingredient as Rogaine but this one had results when the other just scared me. Well after the all that I decided to go for the six month supply and order it and when it came it was totally different, instead of the bottles coming to mix they were already filled up, so I called the company to ask why the bottles were a little different then before they said that they couldn't send the bottles for the costumer to mix anymore and that the processes is to apply to the scalp and rubbed together. Anyway I used it for about a month and a half and the same thing happened like with Rogaine my hands and feet swelled so I sent it back. I was really puzzled after all of this, I mean I tried a product that contained the same ingredient as an other first to work like it was a miracle and then to turn my body into a freak show. What was the difference and Why? and will Rogaine foam work with out those side effects.