Chapter 20 Flashcards
What does a Bacteriostatic drug do? What is an example of one?
Inhibits; Tetracycline
What does a Bactericidal drug do? What is an example of one?
Lethal (kills); Penicillin
What is vancomycin used to treat?
MRSA; bactericidal drug that inhibits cell wall synthesis
Penicillin has __ rings.
2
What does quinolone antibiotics do?
they act by interrupting the replication of DNA molecules in bacteria; this involves inhibition of the bacteria’s gyrase.
What is an example of a drug that inhibits cell wall synthesis?
Penicillin cephalosporin
What is an example of a drug that inhibits protein synthesis?
Tetracycline
What is an example of a drug that injures the plasma membrane?
Nystatin (antifungals)
What is an example of a drug that inhibits nucleic acid synthesis?
Quinolone, Ciproflaxin
What is an example of a drug that inhibits enzymatic activity?
Acylovir (used to treat herpes)
What is Rifampin?
A bacteriostatic (inhibitory) drug used to treat TB
What is Quinolones?
a bactericidal drug that inhibits DNA synthesis and is used to treat UTI’s.
What is Amphoterecin-B?
an antifungal drug used to treat Histoplasmosis, Blastomycosis, Coccidiomyces
What 3 drugs can be used to treat ringworm?
miconazole, ketoconazole, griseofulvin
After how many days of illness will an antiviral drug be ineffective?
2 days
What are 4 antiviral drugs?
- Amantidine (Tamiflu)
- Acyclovir (herpes)
- AZT (HIV-AIDS)
- Gamicyclovir
What are two antiprotozoan drugs?
- Chloroquine (for malaria)
2. Metronidazole (for trichomonas vaginalis)
What are two antimicrobial susceptibility tests?
- Disc diffusion method (Kirby-Bauer)
2. Broth Dilution method (MIC, MBC)
What are some things that can lead to drug resistance?
R-factor transfer, animal feed to R-strains developments, incomplete course of medicine, low doses, mutation in bacteria-drug binding sites
What 2 drugs are in a synergistic combination?
- penicillin
2. streptomycin
What 2 drugs are in an antagonistic combination?
- Penicillin
2. Tetracycline
