A member asked:

How long does prozac (fluoxetine) 20mg take to have an effect if i have been taking concerta 36 mg for a month and previously on adderall ir15mg 1month ?

A doctor has provided 1 answer

Inattention Meds: Usually serotonin inhibitors, like Prozac, (fluoxetine) take about 4-5 weeks to reach full peak effect.

Answered 5/24/2014

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