I am writing for my parents as of right now Mom is on cardiaxt120 mg and parents pay $6.oo the heart doctor is saying she is getting to much the 120 is to much and they want to cut her down to 90 mg but they don t make 90 mg, the doctor ordered 90 mg of diltiazem hci extend 24-hr release and that will cost my parents $97.00 a month, Dad wants to open the capsule and take the grandliers to make 3/4 and put them back together, what would you do