Many individuals use the AIDS Drug Assistance Program to cover a Medi-Cal share of cost. This involves the pharmacy billing ADAP for the individuals' share of cost as they fill or refill prescriptions. This process allows them to be able to access Medi-Cal without incurring any expenses. The best way to do this is at the beginning of the month so that you will have Medi-Cal available to you for the rest of the month at no cost.