yes the waxs, shatters are all good with pain, root canal pain i do not know, sometimes i will pop alot of pills even motrin with a bad head ache, but only one shot, 6 pills at once, drink lots of water, i like to do the max they say for a day, in one shot, have never had a problem with pain not going away, i learned that going to the hospitol, they have 800 millagram pills, and gave me 2 of them 1600 millagrams, worked good, made me a believer,