Washington Revised Code Title 69. Food, Drugs, Cosmetics, and Poisons § 69.41.150. Liability of practitioner, pharmacist

(1) A practitioner who authorizes a prescribed drug shall not be liable for any side effects or adverse reactions caused by the manner or method by which a substituted drug product is selected or dispensed.

(2) A pharmacist who substitutes a therapeutically equivalent drug product pursuant to RCW 69.41.100 through 69.41.180 as now or hereafter amended assumes no greater liability for selecting the dispensed drug product than would be incurred in filling a prescription for a drug product prescribed by its established name.

(3) A pharmacist who substitutes a preferred drug for a nonpreferred drug pursuant to RCW 69.41.190 assumes no greater liability for substituting the preferred drug than would be incurred in filling a prescription for the preferred drug when prescribed by name.

(4) A pharmacist who selects an interchangeable biological product to be dispensed pursuant to RCW 69.41.100 through 69.41.180, and the pharmacy for which the pharmacist is providing service, assumes no greater liability for selecting the interchangeable biological product than would be incurred in filling a prescription for the interchangeable biological product when prescribed by name. The prescribing practitioner is not liable for a pharmacist's act or omission in selecting, preparing, or dispensing an interchangeable biological product under this section.