Tylenol and Panadol Prove No Better Than Placebo at Helping Back Pain.
Two-thirds of adults experience back pain sometime during their lives, and most take acetaminophen, found in brands like Tylenol and Panadol, for relief. But new research has found that those medicines are no more helpful than swallowing a sugar pill.
Read the article on Time 
Dr. Sears Comments:
This demonstrates the power of the placebo in lower back pain relief as well as the power of great advertising by Tylenol.