Updates in Antibiotic Therapy for Common Illnesses
UPDATES IN ANTIBIOTIC THERAPY FOR COMMON
ILLNESSES
AMY BROOKS, PHARMD, BCPS CLINICAL PHARMACIST CONCORD HOSPITAL CONCORD, NH
DISCLOSURES
I HAVE NO FINANCIAL RELATIONSHIPS TO DISCLOSE
I WILL BE DISCUSSING DOSING AND INDICATIONS OF ANTIBIOTICS THAT MAY NOT BE FDA APPROVED
OBJECTIVES
? Explain basic pharmacology of major antibiotic drug classes ? Develop an understanding of why certain antibiotics are used for certain
disease states ? Discuss first-line antibiotic choices for common disease states ? Discuss circumstances in which alternative antibiotics would be necessary
BACKGROUND
? Studies have shown that up to 50% of all antibiotics prescribed are inappropriate.1
? Leads to increased morbidity, mortality, cost, and bacterial resistance1
? The spread of resistant bacteria can affect patients who were not even exposed to the antibiotics.2
? The CDC estimates that more than 2 million people are infected with antibiotic resistant bacteria yearly, leading to approximately 23,000 deaths each year. 2
BACKGROUND
? 262.5 million antibiotics prescribed in the outpatient setting each year3
? Outpatient prescribing practices affect local resistance patterns3
? Prescribing practices vary by state and season3 ? Azithromycin and amoxicillin are the most commonly
prescribed outpatient antibiotics3
ANTIBIOTIC DRUG CLASSES
? Penicillins ? Cephalosporins ? Carbapenems ? Fluoroquinolones ? Macrolides ? Clindamycin ? Glycopeptides (vancomycin) ? Daptomycin ? Linezolid
BASIC ANTIBIOTIC PRINCIPLES
? Dose matters (pharmacokinetics) ? The location of the infection in the body matters
(pharmacodynamics) ? Every bug has a drug
? There's more to picking an antibiotic than "S" or "R"
? Much of antibiotic selection is risk vs benefit
? Weighing out the seriousness of the infection with the seriousness of the antibiotic side effects
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