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13 Cards in this Set
- Front
- Back
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Narrow spectrum |
Antibiotic only affects a few organisms |
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Broad Spectrum |
Large range of organisms affected
Example: some drugs combat both gram + and gram - bacteria |
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Bacteriocidal |
Kill microbes directly |
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Bacterostatic |
Prevent microbial growth (most bacteria) |
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Semisynthetic Penicillins |
Example: Amoxicillin, Ampicillin |
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Polypeptide Antibiotics |
Example: Bacitratin, Vancomycin
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Nucleotide analogs |
drugs that mimic nucleotides which prevents viral replication |
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Enzyme Inhibitors |
Block viral enzymes, like neuraminidase in influenza
Example of drug: Acyclovir |
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Interferons |
Proteins that are produced by cells infected with a virus. Cause uninfected cells to produce antiviral proteins.
Example of Drug: Tamiflu --> blocks enzyme |
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Broth dilution Test |
Microdilution plates are used with many tiny wells with varying concentrations of antibiotics to determine the MIC |
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Blocking Entry |
Some bacteria alter the structures of porins, which no longer allow entry of the antibiotics |
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Synergism |
When two or more antibiotics are more effective when taken together |
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Antagonism |
Antibiotics taken in tandem actually are less effective than when taken alone |
