Can Viagra Be Taken Along With Other Medicines?

Hi, i have been treated for heart problem and taking medicine angizem cd90, momotrat od 50, angizar 25, zivast 10 and colosprin regularily . sir im not getting errection properly after i started taking these medicines earlier there was no such problem.for last 89 yrs not able to perform well, can i take viagra or some other medicine.im 49 now