Cefaclor is used to treat certain infections caused by bacteria, such as pneumonia and other lower respiratory tract (lung) infections; and infections of the skin, ears, throat, tonsils, and urinary tract. Cefaclor is in a class of medications called cephalosporin antibiotics. It works by stopping the growth of bacteria.
Antibiotics such as cefaclor will not work for colds, flu, or other viral infections. Using antibiotics when they are not needed increases your risk of getting an infection later that resists antibiotic treatment.
Side Effects Of Cefaclor
Cefaclor may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
- stomach pain
- genital itching
Some side effects can be serious. If you experience any of the following symptoms, call your doctor immediately or get emergency medical treatment:
- itching, prickling, burning, or stinging feeling on the skin
- difficulty breathing or swallowing
- swelling of the face, throat, tongue, lips, eyes, arms or legs
- lack of energy, or feeling faint
- joint pain
- watery or bloody stools, stomach cramps, or fever during treatment or for up to two or more months after stopping treatment
- a return of fever, sore throat, chills, or other signs of infection
Cefaclor may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
Warnings & Precautions
Before taking cefaclor:
- tell your doctor and pharmacist if you are allergic to cefaclor, other cephalosporin antibiotics such as cefadroxil , cefazolin (Ancef, Kefzol), cefdinir , cefditoren (Spectracef), cefepime (Maxipime), cefixime (Suprax), cefotaxime (Claforan), cefotetan, cefoxitin (Mefoxin), cefpodoxime , cefprozil (Cefzil), ceftaroline (Teflaro), ceftazidime ( Fortaz, Tazicef, in Avycaz), ceftibuten (Cedax), ceftriaxone (Rocephin), cefuroxime (Ceftin, Kefurox, Zinacef), and cephalexin (Keflex); penicillin antibiotics; or any other medications. Also tell your doctor if you are allergic to any of the ingredients in cefaclor capsules, extended-release tablets, or suspension. Ask your pharmacist for a list of the ingredients.
- tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention either of the following: anticoagulants (‘blood thinners’) such as warfarin (Coumadin, Jantoven), and probenecid (Probalan). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
- tell your doctor if you have or have ever had any kind of allergies, gastrointestinal disease (GI; affecting the stomach or intestines), especially colitis (a condition that causes swelling in the lining of the colon [large intestine]), or kidney disease.
- if you are taking antacids that contain magnesium or aluminum, take them 1 hour before or 1 hour after cefaclor extended-release tablets.
- tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. If you become pregnant while taking cefaclor, call your doctor.
Cefaclor comes as a capsule, an extended-release (long-acting) tablet, and a suspension (liquid) to take by mouth. The capsule and liquid are usually taken with or without food every 8 or 12 hours. The long-acting tablet is usually taken within 1 hour of eating a meal every 12 hours (twice a day) for 7 to 10 days. Take cefaclor at around the same times every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take cefaclor exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Shake the suspension well before each use to mix the medication evenly.
Swallow the long-acting tablets whole; do not split, chew, or crush them.
You should begin to feel better during the first few days of treatment with cefaclor. If your symptoms do not improve or get worse, call your doctor.
Take cefaclor until you finish the prescription, even if you feel better. If you stop taking cefaclor too soon or skip doses, your infection may not be completely treated and the bacteria may become resistant to antibiotics.
Keep all appointments with your doctor and the laboratory. Your doctor may order certain lab tests to check your body’s response to cefaclor.
Before having any laboratory test, tell your doctor and the laboratory personnel that you are taking cefaclor.
If you are diabetic and test your urine for sugar, use Clinistix or TesTape (not Clinitest) to test your urine while taking this medication.
Do not let anyone else take your medication. Your prescription is probably not refillable.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
All information has been provided courtesy of MedLinePlus from the National Library of Medicine and from the FDA.