Ingredient

Cetirizine Hydrochloride

Cetirizine hydrochloride is an antihistamine ingredient that alleviates allergy symptoms.

See medicines used for Cold / Congestion / CoughSee medicines used for Respiratory & InfectionSee medicines used for Skin / Allergy
All medicines
80
Single ingredient
73
Combination
7
Prescription medication
7
OTC medication
73

MFDS ingredient code M222857

What does it do?

Cetirizine hydrochloride is a second-generation antihistamine used to block the action of histamine, which causes allergic reactions. It is primarily included in medications to alleviate symptoms of allergic conditions such as rhinitis and urticaria.

Cetirizine hydrochloride binds to histamine receptors in the body, preventing histamine from taking effect. This reduces allergy symptoms such as sneezing, itching, and runny nose.

Commonly used for

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

Good to know

Unlike first-generation antihistamines, cetirizine hydrochloride causes less drowsiness, thus having less impact on daily life. It is also widely used for its rapid effect and long duration of action.

Medicines containing this ingredient

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

Category
Dosage form
Strength
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80 total

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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.

Combined ingredients

Ingredients used together with this ingredient in combination products.

Questions about this ingredient

  • QDoes cetirizine make you drowsy?

    According to the literature, cetirizine hydrochloride is a second-generation antihistamine that is said to cause less drowsiness compared to first-generation antihistamines. However, this does not mean that there is no drowsiness at all, so if you feel drowsy after taking it, please avoid driving, and check for overlapping ingredients with other allergy medications.

    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)

This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.