I am a heart patient, I had a heart attack 8 months ago. Is it safe for me to go on long walks. Also, I am taking remizen 2.5, metomac 25, zentor 20, my pharmasist told me that they are equivalent to medicines prescribed by my doctor, cardace 2.5, met-XL 25, and storvas 20. Is my pharmacist correct? Vasant Dakhane