Cal. Bus. & Prof. Code § 4127.8
(a) A pharmacy licensed pursuant to Section 4127.1 or 4127.2 that issues a recall notice regarding a sterile compounded drug shall, in addition to any other duties, contact the recipient pharmacy, prescriber, or patient of the recalled drug and the board as soon as possible within 12 hours of the recall notice if both of the following apply:
(b) A recall notice issued pursuant to subdivision (a) shall be made as follows: