A 23 year old man takes his buprenorphine patch off prior to surgery. When can you expect the plasma level to be half?

A 23 year old man takes his buprenorphine patch off prior to surgery. When can you expect the plasma level to be half?










a. 6 hours
b. 12 hours
c. 24 hours
d. 36 hours
e. 48 hours










Answer:  B