Chapter 31/32 Flashcards
Sulfonamides
- bacteriostatic
- inhibit folic acid synthesis for bacteria
antitubercular drugs
single drug: resistance occurs
multidrug: 6-9 months, less resistance
Inhibit cell wall synthesis
Antitubercular drugs
isoniazad, streptomycin, rifampin, ethambutol
Antifungal drug group
- polyenes
- azoles
- antimetabolic
- antiprotozoals
- echinocandins
Polyenes
Action: binds to fungal cell membranes
Amphotercin B
- fungistatic/cidal
- Polyene
Nystatin
Polyene
increases permeability of fungal cell membrane
fungicidal/static
Azoles
Diflucan
-oral, IV, vaginal, topical
Antimetabolites
selectively penetrates the fungal cell and disrupts fungal DNA and RNA synthesis
Echinocandins
IV
inhibit biosynthesis of cell wall and interferes with growth and reproduction
Peptides used as antibacterials
- Polymyxins
- Bacitracin
Polymyxin
slow IV
- bacteriocidal by interfering with cell membrane of bacterium
- mostly gram -
Bacitracin
- inhibits cell wall synthesis and damages the cell wall membrane
- static/cidal
- IM, topical
Metronidazole
impairs DNA function
-mostly used for GI bacteria