2. Duration of Therapy

Metered-dose inhalers are designed to deliver a set number of inhalations based on the canister size as well as the medication prescribed. Days’ supply for inhalational beta2-adrenergic agents is summarized in Table 4 and 5, based on the maximum recommended doses listed in Tables 1-3, and the number of actuations per canister or number of capsules per blister card listed in Tables 4 and 5. Excessive use may be identified based on refill frequency. Inappropriate supply of short-acting beta2-adrenergic agents will be monitored by reviewing excessive refills.