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cefaclor

Pronunciation

Generic Name: cefaclor (CEF a klor)
Brand Name: Ceclor, Ceclor Pulvules, Ceclor CD, Raniclor

What is cefaclor?

Cefoxitin is a cephalosporin (SEF a low spor in) antibiotic. It works by fighting bacteria in your body.

Cefaclor is used to treat many kinds of bacterial infections, such as bladder infection, ear infection, skin infection, or infection of the respiratory tract.

Cefaclor may also be used for purposes not listed in this medication guide.

What is the most important information I should know about cefaclor?

You should not use this medication if you are allergic to cefoxitin or to similar antibiotics, such as cefdinir (Omnicef), cefprozil (Cefzil), cefuroxime (Ceftin), cephalexin (Keflex), and others.

What should I discuss with my healthcare provider before taking cefaclor?

Do not take this medication if you are allergic to cefaclor or to other cephalosporin antibiotics, such as:

  • cefadroxil (Duricef);

  • cefazolin (Ancef);

  • cefdinir (Omnicef);

  • cefditoren (Spectracef);

  • cefpodoxime (Vantin);

  • cefprozil (Cefzil);

  • ceftibuten (Cedax);

  • cefuroxime (Ceftin);

  • cephalexin (Keflex); or

  • cephradine (Velosef); and others.

To make sure cefoxitin is safe for you, tell your doctor if you have:

  • an allergy to penicillin;

  • kidney disease (or if you are on dialysis);

  • a stomach or intestinal disorder such as colitis;

This medicine is not expected to harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.

Cefaclor may pass into breast milk and could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

The liquid form of cefaclor may contain sucrose. Talk to your doctor before using this form of cefaclor if you have diabetes.

How should I take cefaclor?

Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.

Cefaclor works best if you take it with a meal or within 30 minutes of a meal.

Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup. If you do not have a dose-measuring device, ask your pharmacist for one.

Do not crush, chew, or break an extended-release tablet. Swallow it whole.

This medicine can cause unusual results with certain lab tests for glucose (sugar) in the urine. Tell any doctor who treats you that you are using cefaclor.

Use this medicine for the full prescribed length of time. Your symptoms may improve before the infection is completely cleared. Skipping doses may also increase your risk of further infection that is resistant to antibiotics. Cefaclor will not treat a viral infection such as the flu or a common cold.

Store the tablets and capsules at room temperature away from moisture and heat.

Store the liquid medicine in the refrigerator, do not freeze. Throw away any unused liquid after 14 days.

What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include nausea, vomiting, stomach pain, and diarrhea.

What should I avoid while taking cefaclor?

Antibiotic medicines can cause diarrhea, which may be a sign of a new infection. If you have diarrhea that is watery or bloody, call your doctor. Do not use anti-diarrhea medicine unless your doctor tells you to.

Cefaclor side effects

Get emergency medical help if you have signs of an allergic reaction: hives, numbness or tingling; weakness, feeling light-headed; difficult breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

  • severe stomach pain, diarrhea that is watery or bloody;

  • fever, swollen glands, rash or itching, joint pain, or general ill feeling;

  • easy bruising or bleeding, severe tingling, numbness, pain, muscle weakness;

  • seizure (convulsions);

  • jaundice (yellowing of the skin or eyes); or

  • severe skin reaction--fever, sore throat, swelling in your face or tongue, burning in your eyes, skin pain followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling.

Common side effects may include:

  • diarrhea; or

  • vaginal itching or discharge.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See also: Side effects (in more detail)

Cefaclor dosing information

Usual Adult Dose for Bronchitis:

Acute bacterial exacerbation of chronic bronchitis or secondary bacterial infection of acute bronchitis:
Immediate-release: 250 to 500 mg orally every 8 hours
Extended-release: 500 mg orally every 12 hours with food
Duration: 7 days

Usual Adult Dose for Otitis Media:

Immediate-release: 250 to 500 mg orally every 8 hours for 10 to 14 days

Usual Adult Dose for Pneumonia:

Mild to moderate:
Immediate-release: 500 mg orally every 8 hours for 10 to 21 days

Usual Adult Dose for Pyelonephritis:

Mild to moderate:
Immediate-release: 500 mg orally every 8 hours for 14 days

Usual Adult Dose for Sinusitis:

Immediate-release: 250 to 500 mg orally every 8 hours for 10 to 14 days
Extended-release: 375 mg orally every 12 hours with food
Duration: 10 to 14 days. Longer courses of therapy, sometimes 3 to 4 weeks, may be required for refractory or recurrent cases.

Usual Adult Dose for Skin or Soft Tissue Infection:

Uncomplicated:
Immediate-release: 250 to 500 mg orally every 8 hours
Extended-release: 375 mg orally every 12 hours with food
Duration: 7 to 10 days

Usual Adult Dose for Tonsillitis/Pharyngitis:

Immediate-release: 250 to 500 mg orally every 8 hours
Extended-release: 375 mg orally every 12 hours with food
Duration: 10 days

Usual Adult Dose for Upper Respiratory Tract Infection:

Mild to moderate:
Immediate-release: 250 to 500 mg orally every 8 hours for 10 days
Extended-release: 375 mg orally every 12 hours with food
Duration: 10 days

Usual Adult Dose for Urinary Tract Infection:

Immediate-release: 250 to 500 mg orally every 8 hours for 3 to 10 days

Usual Pediatric Dose for Otitis Media:

1 month or older:
Immediate-release: 20 to 40 mg/kg/day orally in divided doses every 8 or 12 hours; do not exceed 1 g/day
Duration: At least 10 days

Usual Pediatric Dose for Tonsillitis/Pharyngitis:

1 month or older:
Immediate-release: 20 to 40 mg/kg/day orally in divided doses every 8 or 12 hours; do not exceed 1 g/day
Duration: At least 10 days

Usual Pediatric Dose for Cystitis:

1 month or more:
Immediate-release: 20 to 40 mg/kg/day orally in divided doses every 8 or 12 hours; do not exceed 1 g/day

Usual Pediatric Dose for Pneumonia:

1 month or more:
Immediate-release: 20 to 40 mg/kg/day orally in divided doses every 8 or 12 hours; do not exceed 1 g/day

Usual Pediatric Dose for Pyelonephritis:

1 month or more:
Immediate-release: 20 to 40 mg/kg/day orally in divided doses every 8 or 12 hours; do not exceed 1 g/day

Usual Pediatric Dose for Urinary Tract Infection:

1 month or more:
Immediate-release: 20 to 40 mg/kg/day orally in divided doses every 8 or 12 hours; do not exceed 1 g/day

Usual Pediatric Dose for Skin and Structure Infection:

1 month or more:
Immediate-release: 20 to 40 mg/kg/day orally in divided doses every 8 or 12 hours; do not exceed 1 g/day

What other drugs will affect cefaclor?

Other drugs may interact with cefaclor, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.

Where can I get more information?

  • Your pharmacist can provide more information about cefaclor.
  • Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
  • Disclaimer: Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 1996-2012 Cerner Multum, Inc. Version: 6.01.

Date modified: April 03, 2017
Last reviewed: December 19, 2016

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