1 doctor weighed in:

How long does Prozac (fluoxetine) take to show effect, and what are withdrawals like?

1 doctor weighed in
Dr. Alan Ali
Psychiatry

In brief: Prozac (fluoxetine)

Depending on what it's used for & dosage, onset is 1 week & up to 4 weeks.

In brief: Prozac (fluoxetine)

Depending on what it's used for & dosage, onset is 1 week & up to 4 weeks.
Withdrawal can include upset stomach, nervousness, sleep pattern changes, headaches.
Dr. Alan Ali
Dr. Alan Ali
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