Ingredient

Pseudoephedrine Hydrochloride

Pseudoephedrine hydrochloride is a decongestant that alleviates nasal congestion.

See medicines used for Cold / Congestion / CoughSee medicines used for Respiratory & Infection
All medicines
375
Single ingredient
5
Combination
370
Prescription medication
30
OTC medication
345

MFDS ingredient code M203364

What does it do?

This ingredient belongs to the decongestant class and is mainly used to relieve symptoms of nasal congestion. It reduces swelling in the nasal passages, making breathing easier in conditions such as colds or allergic rhinitis.

Pseudoephedrine hydrochloride constricts the blood vessels in the nasal mucosa, reducing swelling and inflammation. As a result, nasal congestion is alleviated, making it easier to breathe.

Commonly used for

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

Good to know

This ingredient is not an anti-inflammatory medication per se, but it alleviates symptoms through vasoconstriction. Unlike antihistamines, it does not block allergic reactions and primarily focuses on relieving congestion.

Medicines containing this ingredient

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

Category
Dosage form
Strength
Category

375 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

  • QHow does pseudoephedrine hydrochloride work for a stuffy nose?

    Pseudoephedrine hydrochloride is a decongestant that constricts the blood vessels in the nasal mucosa to reduce swelling and alleviate nasal congestion from colds or allergic rhinitis. It works differently from antihistamines that block allergic reactions, and as it may be present in multiple cold medications, please check for overlapping ingredients with the other medications you are taking.

    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.