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from that group. For example, if a prescriber in such an organization decides that a patient needs a thiazide diuretic, the pharmacist automatically dispenses the single thiazide diuretic carried on the organization’s formulary. As noted below, the choice of drugs for the organization’s formulary may change from time to time, depending on negotiation of prices and rebates with different manufacturers.
The private pharmacy bases its charges on the cost of the drug plus a fee for providing a professional service. Each time a prescription is dispensed, there is a fee. The prescriber controls the frequency of filling prescriptions by authorizing refills and specifying the quantity to be dispensed. However, for medications used for chronic illnesses, the quantity covered by insurance may be limited to the amount used in 1 month or 30 days. Thus, the prescriber can save the patient money by prescribing standard sizes (so that drugs do not have to be repackaged) and, when chronic treatment is involved, by ordering the largest quantity consistent with safety, expense, and third-party plan. Optimal prescribing for cost savings often involves consultation between the prescriber and the pharmacist. Because of continuing increases in the wholesale prices of drugs in the USA, prescription costs have risen dramatically over the past three decades, and with the passage of the Affordable Care Act (ACA), prescription volume increased while hospital services decreased.
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