Mail Order Pharmacy services offered by Costco are an extension of your present prescription drug profit. When you have a prescription for a medication not discovered on our formulary, it can be ordered for you for those who request it. The pharmacy staff will advise you on worth and other vital facts regarding the medication prior to your making the decision to order it. Our pharmacy is registered with the IPLEDGE program. While a 5 % copay isn't important for seniors who take low-price drugs, for seniors who want brand-name drugs to treat conditions like cancer, a number of sclerosis, and hepatitis C, these copays can add hundreds of dollars in out-of-pocket expenses.