Hylands - FlexMore PM Nighttime Arthritis Pain Relief - 50 Tablets FlexMore PM is made to relieve minor arthritis pain like swelling or stiffness joint neck or back pain and muscular cramping associated with minor rheumatic pain while helping with occasional sleeplessness. Find relief with natural active ingredients! No NSAIDs like Ibuprofen Naproxen Acetaminophen or Aspirin and no known drug interactions. FlexMore PM has an easy-open cap.