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88 Cards in this Set
- Front
- Back
PABA analog
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Sulfonamide
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Bactrim
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Combination of trimethoprim and sulfamethoxazole
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These two penicillins are resistant to penicillinase.
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Methicillin, oxacillin
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Broad spectrum antibiotics include...
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Ampicillin and amoxicillin, cephalosporins, imipenem (a carbapenem), tetracyclines, chloramphenicol, erythromycin
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Narrow spectrum antibiotics include...
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Vancomycin
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These two penicillins have a broad spectrum of action
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Ampicillin, amoxicillin
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Components of fungal cell walls
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Chitin (acetyl glucosamine polymer), glucan
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Components of bacterial cell walls
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Peptidoglycan polymers
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Component of fungal cell membrane
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Ergostol
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These are commonly used to treat UTIs
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Sulfonamides
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This drug inhibits dihydrofolate reductase
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Trimethoprim
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This drug inhibits synthesis of mycolic acid
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Isoniazid
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These drugs are used to treat TB
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Isoniazid (-cidal), ethambutol (-static), pyrazinamide (-cidal)
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All members of these classes of drugs are bactericidal
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Cell wall synthesis inhibitors, drugs that affect cell membrane permeability
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Relies on autolysins to kill bacteria
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Penicillins and other cell wall inhibitors
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This penicillin is deactivated by acid
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Penicillin G
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These drugs function by inhibiting transpeptidases
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Penicillins
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This penicillin has no oral formulation
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Penicillin G
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This penicillin is relatively acid stable
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Penicillin V
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This is a carboxypenicillin
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Ticarcillin
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This is a ureidopenicillin, and is most active against G- enteric bacilli
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Piperacillin
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This drug is avoided in adults because of high incidence of interstitial nephritis
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Methicillin
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This drug is indicated for pts with penicillin allergies
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Cephalosporins
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This family of drugs is able to enter CSF
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Cephalosporins
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These drugs have greater acid stability and resistance to penicillinase
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Cephalosporins
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This drug has the broadest antimicrobial spectrum
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Imipenem (a carbapenem)
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This drug is susceptible to breakdown by renal dipeptidase
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Impenem
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These are beta-lactamase inhibitors and are used in conjunction with penicillins to increase efficacy
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Clavulanic acid, sulbactam
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This drug belongs to the glycopeptide class of cell wall inhibitors and has a very narrow spectrum
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Vancomycin
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This drug is ototoxic and nephrotoxic
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Vancomycin
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This drug is a D-ala analog
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Cycloserine
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This drug inactivates the phosphatases responsible for generating the active form of the carrier lipid in murein (peptidoglycan) precursor synthesis
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Bacitracin
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The positively charged polypeptide antibiotic binds to the (-) charged LPS, causing membrane leakage
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Polymyxin B
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These are aminoglycosides
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Streptomycin, gentamicin
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These bind to the 30S subunit of bacterial ribosomes
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Aminoglycosides, tetracyclines
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Does not penetrate bacteria readily, and some metabolic activity by the bacterium is needed for it to enter
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Streptomycin
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Its action is inhibited under anaerobic or acidic conditions, such as in urine
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Streptomycin
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Bacteria CANNOT obtain resistance in "one step" because they interact with more than one ribosomal protein on the 30S subunit
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Gentamicin
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Bacteria CAN obtain resistance in "one step" because they interact with only one ribosomal protein on the 30S subunit
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Streptomycin
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Ototoxic and nephrotoxic
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Aminoglycosides
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These are well absorbed orally and suited to outpatient treatment when therapy is needed over a week or two
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Tetracyclines
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These drugs can cause mottled enamel in children under the age of 8
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Tetracyclines
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This is a new drug that evades efflux pumps in bacteria that are resistant to other members of its class
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Tigecycline
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Prolonged oral administration can change the composition of GI flora
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Tetracyclines and other broad spectrum drugs
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These inhibit 50S function
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Erythromycin, azithromycin, chloramphenicol, clindamycin
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First new class of anti-ribosomal drugs developed in 35 years
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Oxazolidinones (linezolid, zyvox)
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These drugs are bactericidal
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Aminoglyosides, nucleic acid inhibitors, cell wall synthesis inhibitors, drugs that affect cell membrane permeability
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These drugs are bacteriostatic
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All inhibitors of protein synthesis except aminoglycosides (chloramphenicol and mupirocin can have -cidal effects)
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Bone marrow problems, and, rarely, induction of aplastic anemia
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Chloramphenicol
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Inhibits peptidyl transferase
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Clindamycin
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Useful treatment for MRSA
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Mupirocin
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Inhibits protein synthesis via a mechanism other than interacting with ribosomal subunits
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Mupirocin
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Antibiotic of choice against anthrax
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Ciprofloxacin
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These are inhibitors of DNA replication
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Quinolones (ciprofloxacin, moxifloxacin)
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These drugs bind and inhibit DNA gyrase
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Quinolones (ciprofloxacin, moxifloxacin)
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These drugs should not be prescribed for pregnant women or children because they dmg growing bone
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Quinolones (ciprofloxacin, moxifloxacin)
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This drug inhibits DNA synthesis by directly binding DNA and fragmenting it
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Metronidazole
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These drugs are also used to treat protozoal infections
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Metronidazole, sulfonamides
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This drug may also permeabilize protoplasts and inhibit RNA synthesis
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Vancomycin
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Its action requires aerobic conditions
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Metronidazole
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This drug is activated by an e- transport protein, ferredoxin
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Metronidazole
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RNA synthesis inhibitor
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Rifampin
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Used against TB in conjunction with other drugs
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Rifampin
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Efficiently secreted in saliva, and therefore makes a good prophylactic against infectious bacteria that enter via the nasopharyngeal route
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Rifampin
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Resistance to these drugs is by enzymes that modify the structure of the drugs
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Aminoglycosides
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Resistance is by acetylation by a bacterial enzyme
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Chloramphenicol
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Resistance is by hydrolysis of a lactone ring
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Erythromycin
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Resistance is by decreased expression of porins
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beta-lactams, chloramphenicol
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Resistance is via efflux pumps
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Tetracyclines, flucanazole
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Resistance is via alteration of target molecules
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Vancomycin
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Resistance is via alteration of target enzymes
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Methicillin, sulfonamide, trimethoprim
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These are antifungal drugs
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Flucytosine, fluconazole, ketoconazole, caspofungin, amphotericin B, nystatin
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These drugs are fungal antimetabolites
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Flucytosine
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Inhibits fungal cell MEMBRANE synthesis
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Fluconazole, ketoconazole
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Inhibits fungal cell WALL synthesis
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Caspofungin
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Inhibits fungal cell membrane permeability
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Amphotericin B, nystatin
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Converted to an active form within the bacterial cell
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Isoniazid
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Penetrates human cell membranes
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Isoniazid
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TB drugs that are bactericidal
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Isoniazid, pyrazanimide
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Often used in conjunction with polymyxin B and neomycin
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Bacitracin
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Commonly used as a topical agents, but systemic use is largely supplanted by more effective and less toxic agents
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Polymyxin B
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Requires aerobic conditions to be effective
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Aminoglycosides
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Protein synthesis inhibitor with similar spectrum of activity to penicillin G
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Erythromycin
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Taken up by phagocytes which migrate to site of infection, giving high and sustained tissue concentrations (half life of 70 hrs).
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Azithromycin
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Resistance develops very rapidly, therefore it is no longer recommended for treating MSRA
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Quinolones
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Requires mycobacteria amidase to become activated
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Pyrazinamide
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Cannot be used in high doses thereby only acts as a fungistatic agent therapeutically
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Nystatin
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Can be fungicidal or fungistatic, depending on the fungal isolate.
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Flucytosine
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