I Am Taking 6 Pills A Day Of Delzicol For

I am taking 6 pills a day of Delzicol for about 30 years. My colonoscopies have been great the last 10 to 15 years. I am now on Medicare and more insurance are not covering this pill. I will be paying at least $3,200 out of my pocket a year. I can not take the generic as it contains sulfa which cause reactions to me. I have wondered if it is possible to take just 4 a day or are there other options.