Oral
Dosage/Direction for Use
Oral |
Contraindications
Hypersensitivity to penicillins.
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Special Precautions
Allergy to cephalosporins, infectious mononucleosis, neonates with jaundice, H/o convulsions, lactation.
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Adverse Reactions
GI upsets, rash, urticaria, neutropenia, neurotoxicity, agranulocytosis (rarely), increased incidence of phlebitis with IV use.
Potentially Fatal: Rarely anaphylactic shock; pseudomembranous colitis. |
Drug Interactions
Failure of OC may occur, loss of potency of cloxacillin in soln. reported with erythromycin, gentamicin, kanamycin, colistin, oxytetracycline, chlorpromazine, Vit.C, & polymyxin B sulphate. Products containing cloxacillin should not be added to IV lipids, blood products, protein hydrolysates or other proteinaceous fluids. Chloramphenicol & tetracycline antagonise bactericidal effect of penicillins. Probenecid prolongs serum drug concentration; Sulfonamides & aspirin inhibit serum protein binding of cloxacillin, thereby increasing serum-free drug levels.
Potentially Fatal: None reported. |
Food Interaction
Food may delay cloxacillin absorption.
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Lab Interference
Interferes with urinary test for Bence-Jones protein. Cloxacillin also interferes with urinary 17-oxosteroids measurements.
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Action
Amoxicillin is bactericidal against non β-lactamase producing gm+ve organisms and selected gm-ve pathogens.
Cloxacillin is a β-lactamase resistant penicillin active against gm+ve organisms including β-lactamase (penicillinase) producing strains of Staphylococci. It is highly active against Staph aureus, Strep pyogenes, Strep viridans and Strep pneumoniae. Also effective against penicillinase producing gonococci and against N meningitidis and H influenzae.
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CIMS Class
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ATC Classification
J01CF02 - cloxacillin ; Belongs to the class of beta-lactamase resistant penicillins. Used in the systemic treatment of infections.
J01CA04 - amoxicillin ; Belongs to the class of penicillins with extended spectrum. Used in the systemic treatment of infections. |