If the cardiologist approves of course. I expect you will feel better in a couple days.
I have been taking otc nitric oxide capsules from amazon.com and feel 100% stronger with more oxygen and flexibility to the heart during relatively easy chores. I dissolve three capsules in my coffee twice a day and feel like Popeye eating a can of spinach. Some people use them for their workouts. I use them to get out and work.