Anti-infective Drugs (Antifungal, antiprotozoal) Flashcards
Mycosis
Fungal infection (opportunistic infections)
Protozoa
Reproduce: crowded places, unsanitary
Azoles
Treat: candidiasis, cryptococcosis, histoplasmosis
Malaria
Protozoan disease, Incubation period 10-35 days
Metronidazole (Flagyl) & Tinidazole
Inhibit DNA synthesis
Nystatin (Mycostatin)
Increases permeability of fungal cell membrane
Antimetabolites
Used in combination (azole or nystatin) - increases effectiveness and toxicity
Metronidazole (Flagyl) Safety precautions
Change in LOC; dizziness
When taking Metronidazole (Flagyl), avoid what?
Avoid alcohol and avoid taking during 1st trimester of pregnancy
Benznidazole
Used to treat Chagas disease (caused by a parasite) in children 2 to 12 years old.
Fenbendazole
Used as an antiparasitic agent against various gastrointestinal parasites
Iodoquinol
Inhibits invading organisms from using substances essential to their growth and development
Antifungal agents
Kills or inactivates fungi and are used to treat fungal infections
Echinocandins
A class of antifungal drugs that target the fungal cell wall
Polyene antifungals
Increases the membrane permeability and leads to cell death
Voriconazole
Inhibits cytochrome p450 dependent synthesis of ergosterol
Atovaquone
May interfere with electron transport in protozoal mitochondria
Ketoconazole
Inhibits yeast growth by altering permeability of cell membrane
Carbapenems
Inhibits bacterial cell wall synthesis by binding to the penicillin-binding proteins and interfering with cell wall formation
Tetracyclines
Inhibit protein synthesis in the microbial RNA
Leprostatics
Inhibit the growth of Mycobacterium leprae, the bacterium that causes leprosy
Amphotericin B
Treatment of severe fungal infections
Amphotericin B
Route: IV over 2-6 hours
Amphotericin B nursing intv.
Monitor vital signs q30 min, give IV slowly
Antiprotozoals
Atovaquone (Mepron)
Clotrimazole
Used to treat skin infections such as athlete’s foot
Nifuratel
Indicated for the treatment of vulvovaginal and urinary tract infections
Tinidazole
Used to treat infections caused by protozoa
Prophylactic Measures for malaria
Use long sleeves, go out before dusk
Nystatin (Mycostatin) client teaching
Swish and swallow