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A member asked:

How long does novocaine without epinephrine last in your blood stream?

A doctor has provided 1 answer
Dr. John Thaler answered

Specializes in Prosthodontics

Not sure: The effects of the non-epinephrine anesthetics usually wear off in 30 - 60 minutes, depending upon the dose used and the patient's metabolism and the type of administration -- local or block placement. How long it remains in your blood stream I do not know. Might have to take blood and test to know the answer to that. Might be some reports under metabolization of anesthetics.

Answered 10/6/2018

5.4k views

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