(1) The determination of the drug product to be dispensed on a prescription is a professional responsibility of the pharmacist, and the pharmacist shall not dispense any product that in his/her professional opinion does not meet adequate standards.
(2) Pharmacists may utilize as the basis for their decisions on therapeutically equivalent drug products:
(a) Available drug product information from federal and state agencies, official compendia, and drug manufacturers, or
(b) Other scientific or professional resources, or
(c) The federal food and drug administration "approved drug products" as a board approved reference for a positive formulary of therapeutically equivalent products within the limitations stipulated in that publication.
(3) Those pharmacies that fill prescriptions based on prior authorization for therapeutically equivalent drug substitution must have available for inspection and review such authorization documentation in the institutional records or in the pharmacy.
[Statutory Authority: RCW
18.64.005 and chapter
18.64A RCW. WSR 91-18-057 (Order 191B), recodified as § 246-899-030, filed 8/30/91, effective 9/30/91. Statutory Authority: RCW
69.41.180. WSR 79-12-063 (Order 152), § 360-49-020, filed 11/29/79; Order 143, § 360-49-020, filed 12/9/77.]