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how long does prozac take to work

A 49-year-old member asked:
Dr. M. Jan
Dr. M. Jan answered
66 years experience Family Medicine
1 to 2 weeks: All medications in this group ( ssri) take 1-2 weeks for full effect.

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A 16-year-old male asked:
Dr. Cornelia Franz
Specializes in Pediatrics
2 weeks: 2-4 weeks is the general time frame to give medications to see if they help. Prozac (fluoxetine) is the most recommended and best working in teens. If ... Read More
Dr. Pamela Pappas
42 years experience Psychiatry
Prozac (fluoxetine): Prozac requires at least 4-6 weeks to show effectiveness, but results in adolescents can be more variable. Please also consider psychotherapy in your ... Read More
A female asked:
Dr. Louis Krenn
20 years experience Family Medicine
Few weeks: When switching anxiety medications it can still take 2 to 4 weeks for the medication to have an effect.
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A female asked:
Dr. Lynne Weixel
36 years experience Clinical Psychology
He can ask: He needs to call the Dr and ask about this and any other things he'd like to know about - Full info regarding these Rx(s) is very important - it can e ... Read More
A 23-year-old female asked:
Dr. Judith Tellerman
42 years experience Clinical Psychology
Consult: It would be a good idea to make an appointment with a Psychiatrist for a medication consultation to see if you are taking the antidepressant that is b ... Read More
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A 31-year-old member asked:
Dr. Donald Jacobson
A Verified Doctor answered
A US doctor answered Learn more
2 to 8 weeks: The initial improvement is usually felt at least on some day within two to 4 weeks. If used for ocd, significant improvement can take up to 12 weeks. ... Read More
A 37-year-old member asked:
Dr. Alan Ali
Dr. Alan Ali answered
32 years experience Psychiatry
Prozac (fluoxetine): Usually after one week you would see some response, then within 4-5 weeks for full efficacy at the therapeutic dose.
A 45-year-old member asked:
Dr. Mark Reynolds
33 years experience Psychiatry
Tapering Prozac (fluoxetine).: Please do not stop your antidepressant without checking with the prescribing physician. Many conditions Prozac (fluoxetine) is used to treat tend to r ... Read More
A 37-year-old member asked:
Dr. Donald Hazlett
54 years experience Psychiatry
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 ... Read More
A 42-year-old member asked:
Dr. Shariq Refai
13 years experience Psychiatry
Can be: Can take 4-6 weeks to take full effect.

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