Prescription drugs; require that value of manufacturer copay assistance be applied to reduce patient deductible/out-of-pocket maximum costs.

HB 1667 would require health insurance plans and prescription drug programs in Mississippi to apply manufacturer copay assistance (money drug companies provide to help patients pay for drugs) toward reducing patients' annual deductibles and out-of-pocket maximum costs. Currently, some plans may not apply this assistance to these broader cost-sharing limits, meaning patients could still owe the full deductible even with copay help. The bill mandates that the value of the copay assistance must be used to lower these annual thresholds, rather than only reducing the immediate drug cost. This directly affects patients using prescription drugs and the health plans that cover them by changing how copay assistance is applied.