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A 22-year-old female asked:

I took 20mg of prozac (fluoxetine) for 4 days.. i have been off of it for 3 days.. how long does it take to get out of my system?

4 doctor answers6 doctors weighed in
Dr. Danny Westmoreland
Family Medicine 37 years experience
Should be gone: There would be trace but if you only took 4 doses then it should be pretty much cleared.
Dr. Chris Esguerra
Psychiatry 17 years experience
A while: Since you took prozac/fluoxetine for only 4 days, it should leave your system in about 1 - 2 weeks completely. In general, if someone has been taking Prozac for a while (longer than two weeks), it can take up to 5 weeks to completely wash it out of ones system. For side effects (or beneficial effects) to go away, Prozac does not have to wash out completely, just be low enough to not affect you.
Dr. Alan Ali
Dr. Alan Alianswered
Psychiatry 33 years experience
Prozac (fluoxetine): Agree that it takes up to a week, usually over 72 hours of no Prozac (fluoxetine) you can feel the difference. One exception is weekly Prozac (fluoxetine) capsule which comes in 90mg. Dose given once per week, here it takes longer.
Dr. Alan Ali
Dr. Alan Alianswered
Psychiatry 33 years experience
Prozac (fluoxetine): Due to long half life of prozac, (fluoxetine) roughly a week.

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Similar questions

A 36-year-old member asked:

How long approximately does it take for Prozac (fluoxetine) to get out of your system totally?

1 doctor answer2 doctors weighed in
Dr. Alan Ali
Dr. Alan Alianswered
Psychiatry 33 years experience
Prozac (fluoxetine): Has half-life of up to 72 hours, so that multiplied by 5 means that it can stay in your system for up to 2 weeks or so.
Last updated Oct 2, 2016
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