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19 Cards in this Set

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Polyene

Makes leaky channels; selective fungicidal effect

Amphotericin B

Polyene; mainstay Tx of life threatening mycoses, EXCEPT for dermatophytoses; broadest spectrum of activity (against yeasts and molds); Toxic, but does NOT readily cross the BBB; Renal damage (MOST significant toxic rxn)

Nystatin

Polyene; used topically vs yeasts and dermatophytes; most commonly used for local candidal infections; same toxicity as Amphotericin; TOO toxic for parenteral, so given topically

Common indications: oropharyngeal thrush, vaginal candidiasis, intertriginous candidal infection

Natamycin

Polyene; Primacin (used topically for superficial mycotic infections of the eye)

Azole

Fungistatic; inhibits CYP450 enzymes in ergosterol synthesis; MOST common anti fungal; specific!! Tx of Amphotericin resistant organisms; minor GI upset (MOST common adverse effect)

Ketoconazole

Imidazole prototype; needs acidic environment; does NOT enter the CNS well; greater chance to inhibit mammalian enzymes; MAINLY for its effect on superficial dermatophytes

Fluoconazole

Triazole; enters CNS; LEAST effect of hepatic enzymes; drug of choice for cryptococcal meningitis; MOST commonly used for mucocutaneous candidiasis

Itraconazole

Triazole; Azole of choice for Tx of dimorphic fungi Histoplasma, Blastomyces, Sporothrix; also for Tx of dermatophytoses and onychomycosis; WIDEST therapeutic index of the azoles; REDUCED BA when taken with Rifampicin; does NOT enter CSF

Voriconazole

Triazole; also wide spectrum; Azole of choice vs aspergillosis;

Posaconazole

Triazole; for invasive candidiasis, aspergillosis, zygomycetes; ORAL only

Fluocystine

Anti-metabolite; narrow spectrum of activity; synergy with Amphotericin B (cryptococcal meningitis) AND Itraconazole (chromoblastomycosis); enters CNS; mainly for Tx of Candida, Cryptococcus neoformans, chromoblastomycosis;

Echinocandins

Active against Candida and Aspergillus, but NOT Cryptococcus neoformans; inhibit B glucans of cell wall; Fungicidal;

Caspofungin

Echinocandin; used during febrile neutropenia; if in used with cyclosporin, will elevate liver enzymes

Micaungin

Specifically for bone marrow transplant patients; inc levels of nifedipine, cyclosporin, sirolimus

Anidulafungin

For esophageal and invasive candidiasis, also septicemia; histamine release during IV infusion

Griseofulvin

Fungistatic; for Tx of dermatophytoses; prevent infection of new skin (keratophilic medication); binds to microtubules to stop mitosis; given for 2-6 weeks for hair and skin infections, months for nail infections; ORALLY given

Allylamine: Terbinafine

For Tx of dermatophytoses, especially onychomycosis; keratophilic medication but fungicidal; inhibits squalene epoxidase; 1 tablet for 12 weeks

Clotrimazole and Miconazole

Topical azole; Over the counter; often for Tx of vulvovaginal candidiasis and oral thrush; also for dermatophytic infections (tinea corporis, tinea pedis, tinea cruris)

KI

given orally to Tx cutaneous and lymphocutaneous sporotrichosis, but NOT for Sporothrix schenckii