(1) Prior to dispensing and delivering a prescription, a pharmacist shall verify its validity.
(2) A prescription shall be considered invalid if:
(a) At the time of presentation, the prescription shows evidence of alteration, erasure, or addition by any person other than the person who wrote it;
(b) The prescription does not contain the required information as provided in WAC
246-945-010;
(c) The prescription is expired; or
(d) The prescription is for a controlled substance and does not comply with the requirements in RCW
69.50.308.
(3) A prescription is considered expired when:
(a) The prescription is for a controlled substance listed in Schedule II through V and the date of dispensing is more than six months after the prescription's date of issue.
(b) The prescription is for a noncontrolled legend drug or OTC's and the date of dispensing is more than twelve months after the prescription's date of issue.