Fluoxetine, also marketed as Prozac, is a type of medication known as an antidepressant. It is commonly prescribed to people who experience symptoms of depression, such as intense sadness, loss of interest in activities, or changes in appetite or sleep patterns. Fluoxetine works by increasing the level of a chemical called serotonin in the brain. Serotonin is a neurotransmitter that helps regulate mood, among other functions.

By increasing serotonin levels, fluoxetine can help improve mood and reduce symptoms of depression. It does this by blocking the reuptake of serotonin, which means it helps keep more serotonin available in the brain to transmit messages between nerve cells. This can help regulate mood and alleviate feelings of sadness or hopelessness.

Fluoxetine is most commonly taken in the form of oral capsules or tablets. It usually takes several weeks for the medication to reach its full effect, so it is important to continue taking it as prescribed even if immediate improvements in mood are not noticed.

It’s important to note that fluoxetine may have side effects in some individuals, such as nausea, headache, drowsiness, or changes in sexual desire. These side effects should be discussed with a healthcare professional. Additionally, fluoxetine may interact with certain other medications, so it’s important to inform your doctor about any other medications you are taking.