Brand-Name Drugs Purchased When Generic Equivalent Available - When the member buys a covered drug, the pharmacist will provide a generic equivalent of the prescribed drug whenever it is allowed. If the member chooses to buy the brand-name drug instead of the generic drug equivalent, the member pays the brand-name copayment plus the difference between the cost of the brand-name drug and the generic drug equivalent. However, for certain brand-name drugs, the member only pays the same cost share (deductible, copayment, or coinsurance, whichever applies) that applies for the brand-name drug. (Refer to the Pharmacy Program booklet for more information.)