Me. Rev. Stat. tit. 32, § 13786-C

A pharmacist who dispenses opioid medication in good faith is immune from any civil liability that might otherwise result from dispensing medication in excess of the limit established in section 2210, subsection 1, paragraphs A and B; section 2600‑C, subsection 1, paragraphs A and B; section 3300‑F, subsection 1, paragraphs A and B; section 3657, subsection 1, paragraphs A and B; or section 18308, subsection 1, paragraphs A and B, if the medication was dispensed in accordance with a prescription issued by a practitioner. In a proceeding regarding immunity from liability, there is a rebuttable presumption of good faith.