Ingredient

Cefaclor Hydrate

Cefaclor is an antibiotic used to treat infections caused by gram-positive and gram-negative bacteria.

See medicines used for Respiratory & Infection
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161
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160
Combination
1
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161

MFDS ingredient code M222859

What does it do?

Cefaclor is a component belonging to the cephalosporin class of antibiotics. It is mainly used to treat various bacterial infections such as those in the respiratory tract, urinary tract, and skin. This component is effective against a wide range of gram-positive and negative bacteria.

Cefaclor works by interfering with the synthesis of the bacterial cell wall, preventing the bacteria from growing or reproducing. As a result, the bacteria causing the infection are killed or their activity is suppressed.

Commonly used for

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

Good to know

Cefaclor is effective against a broad spectrum of bacteria with relatively fewer side effects compared to other cephalosporin antibiotics. It is also used as an alternative for patients who are allergic to penicillin antibiotics.

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.

Combined ingredients

Ingredients used together with this ingredient in combination products.

Questions about this ingredient

  • QI have a penicillin allergy; is cefaclor okay for me?

    The documentation states that cephalexin hydrate may be used as an alternative for patients with an allergy to penicillin antibiotics. However, since allergic reactions can vary among individuals and it may be difficult to assess on your own, please inform your doctor of your allergy history before obtaining a prescription, and confirm with your pharmacist as well.

    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.