What are the medical hazard or medical reaction to taking ,Fasamax, which has just been subscribed to me. I also take Xarelto 20 MG 1 daily & Flecainide Acetate 100MG twice daily...these are taken for Atrifibulation. I am 72 years old & retired. Otherwise, I am fairly healthy...not overweight, good steady blood pressure, non-smoker, non-alcohol drinker, average colesterol.