Hi, I am now 77 years old. I got pacemaker in year 2001 & subsequently 2 times stents were applied. I am taking ceruvin a75 (clopidogrel) one tablet daily since 2001. Earlier it was manufactured by m/s. Ranbaxy laboratories. Which has now taken over by m/s. Sun pharmaceuticals ltd. For last 6 months, I have problem with my voice. It has become very feeble low. Please suggest what is the better alternative.