4 doctors weighed in:
How long does it take to begin feeling the effects of prozac (fluoxetine)?
4 doctors weighed in

Dr. Alfredo Soto
Psychiatry
2 doctors agree
In brief: Depends
The effects of a medication like Prozac (fluoxetine) depend on why you are taking it.
In cases of depression, a positive effect can be seen in as little as 1-2 weeks. However, for anxiety disorders, especially hard to treat ones like ocd, effects sometimes take up to 2 months to be seen.

In brief: Depends
The effects of a medication like Prozac (fluoxetine) depend on why you are taking it.
In cases of depression, a positive effect can be seen in as little as 1-2 weeks. However, for anxiety disorders, especially hard to treat ones like ocd, effects sometimes take up to 2 months to be seen.
Dr. Alfredo Soto
Dr. Alfredo Soto
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Dr. Barbara A Majeroni
Family Medicine
In brief: About 6 weeks
Many antidepressants require 4 to 6 weeks to build up to a therapeutic level in the body.

In brief: About 6 weeks
Many antidepressants require 4 to 6 weeks to build up to a therapeutic level in the body.
Dr. Barbara A Majeroni
Dr. Barbara A Majeroni
Thank
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