Heart is enlarged. In place of 20mg?

I am not . My BP is 145 - 150 / 70- 80. I do not consume alcohol.I do meditation,45 minutes, daily.I am 100% vegetarian. There is no record of my hospital admission.Between 8 pm and 6 am, anytime for that matter, if Iie down, within 20 minutes I goto sleep and undergo uninterrupted 4 hours sleep. When I wakeup after 4 hour-sleep, I cannot sleep until lapse of few hours. I take 45 minutes of medium pace walk each day. I do SUDARSHANA KRIYE at least twice a week. I do 25 minutes of bending, twisting exercise which invigorates all the joints of my body. I see only positive side of whatever events that happens within/without my house. I am right now living with my son. My question is : Can I replace medication? Instead of 150mg, can I take ECOSPORIN AV 75mg? Crease 10mg in place of 20mg? Yours sincerely. D S GUNDU RAO