Tylenol (Acetaminophen) is used to treat pain. Unlike some medications for pain, Tylenol does not have anti-inflammatory effects. Often, however, in cases of chronic pain, no inflammation is at the site of the pain, and thus Tylenol may be an appropriate treatment choice.
I believe there are so many sufferers of sleep apnea that is just from vitamin D deficiency that I have decided to highlight her comment. Sleep apnea is failure of the CNS due either to trauma or nutritional deficiency. The diagnosis of obstructive sleep apnea is misnamed. Sleep apnea is all central or related to the CNS. It is typical for obese people to have low vitamin D and sleep apnea can result.
Niacin is vitamin B-3, one of the water soluble B-complex vitamins. One of niacin's unique properties is its ability to help you naturally relax and get to sleep more rapidly at night. And it is well established that niacin helps reduce harmful cholesterol levels in the bloodstream.