For prescriptions filled through the mail order pharmacy (up to a 90-day supply) there is a $70 copayment for a 90-day supply of brand name drugs and a $10 copayment for a 90-day supply of generic drugs.The copayment is prorated for less than a 90-day supply. For example, for a 30-day supply of brand name drugs, the copayment is $23.33. For 30-day supply of generic drugs, the copayment is $3.33. Using the mail order service may serve to make your Prescription Drug Benefit dollars go further because the mail order pharmacy's prices for generic and brand name drugs are usually significantly lower than prices charged by local pharmacies. The mail order service can be accessed via the Unionâ€™s website at www.SSEU371.org. Remember: You may save money when you use the mail order pharmacy.