How does a drug like Tylenol stop my toothache from hurting?


Question:


Answers:
it blocks the pain receptors in your brain. So you're brain doesn't "register" that there is pain.

I'm not sure of the exact chemical pathways.

Other Answers:
Lizzy pretty much wrapped it up. Depending on your interest, you may want to go here: http://en.wikipedia.org/wiki/Acetaminophen#Mechanism_of_action for a more scientific explanation



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