Section 47EE. Any policy, contract, agreement, plan or certificate of insurance issued, delivered or renewed within the commonwealth, which is considered creditable coverage under section 1 of chapter 118M, shall provide coverage for abuse deterrent opioid drug products listed on the formulary, compiled pursuant to subsection (b) of section 13 of chapter 17, on a basis not less favorable than non-abuse deterrent opioid drug products that are covered by such policy, contract, agreement, plan or certificate of insurance. An increase in patient cost sharing shall not be allowed to achieve compliance with this section.