Cefaclor is an oral cephalosporin antibiotic used to treat bacterial infections including ear infections, respiratory tract infections, urinary tract infections, skin infections, and strep throat. Cefaclor is a prescription medication antibiotic used to treat a wide variety of bacterial infections such as middle ear, skin, urine and respiratory tract infections. Learn about side effects, drug interactions, dosages, warnings, and more. What is this medication? CEFACLOR (SEF a klor) treats infections caused by bacteria. It belongs to a group of medications called cephalosporin antibiotics. It will not treat colds, the flu, or infections caused by viruses. Advertisement What is cefaclor? Cefaclor 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 is a second-generation cephalosporin antibiotic. It's used to treat many different types of infections throughout the body in both children and adults. This medication is available as tablets and as a liquid suspension that's taken by mouth, typically 2 to 3 times daily. View cefaclor information, including dose, uses, side-effects, renal impairment, pregnancy, breast feeding and drug action. Cefaclor package insert / prescribing information for healthcare professionals. Includes: indications, dosage, adverse reactions and pharmacology. Find patient medical information for Cefaclor (Ceclor, Raniclor) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Medscape - Indication-specific dosing for cefaclor, frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. Cefaclor, sold under the trade name Ceclor among others, is a second-generation cephalosporin antibiotic used to treat certain bacterial infections such as pneumonia and infections of the ear, lung, skin, throat, and urinary tract.