As used in RCW 69.41.100 through 69.41.180, the following words shall have the following meanings:
(1) "Brand name" means the proprietary or trade name selected by the manufacturer and placed upon a drug, its container, label, or wrapping at the time of packaging;
(2) "Generic name" means the official title of a drug or drug ingredients published in the latest edition of a nationally recognized pharmacopoeia or formulary;
(3) "Substitute" means to dispense, with the practitioner's authorization, a "therapeutically equivalent" drug product of the identical base or salt as the specific drug product prescribed: PROVIDED, That with the practitioner's prior consent, therapeutically equivalent drugs other than the identical base or salt may be dispensed;
(4) "Therapeutically equivalent" means essentially the same efficacy and toxicity when administered to an individual in the same dosage regimen; and
(5) "Practitioner" means a physician, osteopathic physician and surgeon, dentist, veterinarian, or any other person authorized to prescribe drugs under the laws of this state.
[1979 c 110 § 1; 1977 ex.s. c 352 § 2.]