Commencing January 1, 2019, an insurer shall prorate an insured’s cost sharing for a partial fill of a prescription dispensed pursuant to § 4052.10 of the Business and Professions Code. This section shall only apply to oral, solid dosage forms of prescription drugs.

(Added by Stats. 2017, Ch. 615, Sec. 6. (AB 1048) Effective January 1, 2018.)