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88 Cards in this Set

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