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A 33-year-old female asked:

Took 5mg of prozac (fluoxetine) for 6 days. how many days would it take to leave my system?

1 doctor answer1 doctor weighed in
Dr. Katherine Caldwell
Internal Medicine 18 years experience
Less than a week: The usual starting dose for fluoxetine (Prozac) is 20 mg, so you were on a VERY low dose, so after 6 doses there is not very much med in your body. The time for 1/2 the medicine to be eliminated from the body in a healthy person is 3 days at most, so it would take about 6 days for the last dose to be completely eliminated. It may be gone sooner depending on how quickly your liver metabolizes it.

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CA
A 37-year-old member asked:

How long will it take for Prozac (fluoxetine) to leave my system?

1 doctor answer1 doctor weighed in
Dr. Donald Hazlett
Psychiatry 55 years experience
Quite a while: Prozac (fluoxetine) taken over a period of three or more months, then stopped, can show the presence of fluoxetine for five or more weeks. Prozac has both a right and left isomer (like looking at yourself in the mirror and raising your hand and watching your raised r hand appear to be your l hand). Breakdown of fluoxetine yields nor-fluoxetine which lasts 2 x as long in the body as fluoxetine.

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Last updated Mar 7, 2016

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