United States securities and exchange commission logo August 8, 2023 Brian Markison Chief Executive and Director and Principal Financial Officer RVL Pharmaceuticals plc 400 Crossing Boulevard Bridgewater, NJ 08807 Re: RVL Pharmaceuticals plc Form 10-K for the Fiscal Year Ended December 31, 2022 Filed March 20, 2023 File No. 001-38709 Dear Brian Markison: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Life Sciences