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A member asked:
Doing a study and using tylenol (acetaminophen). participants wont be taking it for any type of relief. how long does tylenol (acetaminophen) take before it starts to work in brain?
A doctor has provided 1 answer
15 to 30 minutes: Onset of action for acetaminophen is usually 15 to 30 minutes. Please be sure not to exceed recommend dosages.
Answered 1/28/2016
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