Knee Lateral Collateral Ligament Injury. Lateral collateral ligament (LCL) is a thin set of tissues present on the outer side of the knee, connecting the thighbone (femur) to the fibula (side bone of lower leg). It provides stability as well as limits the sidewise rotation of the knee.
OTC Pain Relief: Understanding Acetaminophen. Youâve probably taken acetaminophen at one time or another for fever or pain relief. You may know acetaminophen as the active ingredient in Tylenol and many other over-the-counter (OTC) products, including cold medications. When used as directed, taking acetaminophen is generally safe and effective. But it can be harmful if itâs not taken correctly.
Full Answer. Tylenol PM contains two active ingredients: acetaminophen, which is a pain reliever, and diphenhydramine, which is a sleep aid. Tylenol PM is meant for adults and children 12 years and older. Users of Tylenol PM should not consume more than two caplets in a 24-hour period.