The Difference Between Over-The-Counter Pain Relievers - From Weakest to Strongest

• What are the best pain pills? What are the dosages?

• Which pain killers have the worst side-effects?

• This chart lists the pain relief ability of the most common pain medication, both prescription and non-prescription.

   Here is a comparison table summary of popular pain medication. The pain relievers below were ranked by effectiveness for chronic back pain, by a Harvard Study. Each pain medication was rated for effectiveness on a scale of 
from 1 (aspirin) to 10 (morphine).