Cefaclor is an oral drug used to treat bacterial infections. Learn about side effects, warnings, dosage, and more. To reduce the development of drug-resistant bacteria and maintain the effectiveness of Cefaclor Capsule and other antibacterial drugs, Cefaclor Capsule should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. 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. Cefaclor Capsules 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. 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, 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. 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 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. 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.