Ingredient

Fluoxetine Hydrochloride

Fluoxetine hydrochloride is an antidepressant ingredient used for the treatment of depression and anxiety disorders.

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MFDS ingredient code M222903

What does it do?

Fluoxetine hydrochloride is an antidepressant that belongs to the selective serotonin reuptake inhibitors (SSRIs) class. It is primarily used in the treatment of depression and anxiety disorders, aiming to improve mood by increasing serotonin levels in the brain.

Fluoxetine hydrochloride increases serotonin levels by preventing the reabsorption of serotonin between brain nerve cells. As a result, it produces effects that improve mood and reduce anxiety.

Commonly used for

Approved uses differ by product. Check each product's information for its actual use.

Good to know

Fluoxetine hydrochloride has a longer half-life compared to other SSRIs, allowing for prolonged efficacy. Additionally, its side effect profile is relatively stable compared to other antidepressants.

Medicines containing this ingredient

Even with the same ingredient, strength, dosage form and how it is taken can differ.

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Even with the same ingredient, dosage and approved uses can differ by strength, dosage form and combined ingredients. Check each product's information before taking it.

Questions about this ingredient

  • QI switched to this from another SSRI; how is it different?

    According to the informational material, Fluoxetine hydrochloride has a longer half-life compared to other SSRI medications and persists longer in its effectiveness. Changes or discomfort experienced during the process of switching medications can vary from person to person, so please discuss this matter in detail with the prescribing physician.

    Answers 1 · 2026.09.14

  • QI feel like I'm getting better, so I want to try reducing the dosage.

    Even if you feel better, do not reduce or stop the antidepressant on your own; please consult the prescribing physician first. The improvement of symptoms may itself be due to the effect of the medication, so it is advisable to determine the adjustment and method through medical consultation.

    Answers 1 · 2026.09.14

  • QWhat kind of medication is Fluoxetine?

    Fluoxetine hydrochloride is a selective serotonin reuptake inhibitor (SSRI) antidepressant. It prevents the reabsorption of serotonin between brain nerve cells, increasing its concentration, and is primarily used for the treatment of depression and anxiety disorders.

    Answers 1 · 2026.09.14

For anything that needs medical judgment, consult a doctor or pharmacist.

SourceKorea Ministry of Food and Drug Safety (Drug Safety Korea)

Product approval information is based on drug information provided by the Ministry of Food and Drug Safety.
Ingredient and class descriptions are not part of MFDS data and were written separately by Cashdoc.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.