 [ Symptoms ] i have been using minoxidil lotion on my scalp prescribed by a hair loss clinic i am now very worried that i am going to have a heart attack [ Disease ] you need to know that minoxidil works only in the time you are taking it and after stopping it results will nlbe lost palpitations is a side effect but not a sign of heart problem however i recommend stopping minixidil and start to feed your hair from inside your body by taking enough vitamins and minerals and use natural oils and products plus laser therapy if you are a female minoxidil can cause also facial hair growth