i have heart problem, i have gone with stents and 2 stents for PCA then after one year i got pain and doctors advised me to go for Nikoran-5mg OD, Inapure-5 mg OD, cardace-2.5, OD, Clopilet how long can i continue with Nikoran-5mg and Inapure-5 mg is it safe if i use for long periods