(a) A health care service plan shall disclose to a contracted pharmacy provider or its contracting agent the prescription drug information contained in subdivision (a) of Section 1363.03, including, but not limited to, the telephone number pharmacy providers may call for assistance and information necessary to process a pharmacy claim.
(b) A health care service plan shall not include in a contract with a pharmacy provider or its contracting agent a provision that prohibits the provider from informing a patient of a less costly alternative to a prescribed medication.