The drug is known as an SSRI, or selective serotonin reuptake inhibitor. This means that it works by blocking the reuptake of serotonin in the brain when levels become unbalanced. Generic fluoxetine is currently available and is produced by a number of manufacturers.
(For an in-depth discussion on this drug, click Fluoxetine. This article takes a closer look at how fluoxetine works, possible side effects, dosing guidelines, and more.)