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DƯỢC LÍ Goodman & Gilman's The Pharmacological Basis of Therapeutics 12th, 2010

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Table 57–1

Pharmacotherapy of Mycoses

SUPERFICIAL

DEEP MYCOSES DRUGS MYCOSES DRUGS

Invasive aspergillosis

Candidiasis

Immunosuppressed Voriconazole, Vulvovaginal Topical

amphotericin B

Butoconazole, clotrimazole,

Non-immunosuppressed Voriconazole, ampho- miconazole, nystatin, terconazole,

tericin B, itraconazole

tioconazole

Blastomycosis

Oral

Rapidly progressive or CNS Amphotericin B Fluconazole

Indolent and non-CNS Itraconazole Oropharyngeal Topical

Candidiasis

Clotrimazole, nystatin

Deeply invasive Amphotericin B, fluconazole, Oral (systemic)

voriconazole, caspofungin,

Fluconazole, itraconazole

micafungin, anidulafungin

Posaconazole

Coccidioidomycosis Cutaneous Topical

Rapidly progressing Amphotericin B Amphotericin B, clotrimazole,

Indolent Itraconazole, fluconazole ciclopirox, econazole, ketoconazole,

miconazole, nystatin

Meningeal Fluconazole, intrathecal Ringworm Topical

amphotericin B

Butenafine, ciclopirox, clotrimazole,

Cryptococcosis

econazole, haloprogin, ketoconazole,

Non-AIDS and initial AIDS Amphotericin B, flucytosine miconazole, naftifine, oxiconazole,

Maintenance AIDS Fluconazole sertaconazole, sulconazole,

Histoplasmosis

terbinafine, tolnaftate, undecylenate

Chronic pulmonary Itraconazole Systemic

Disseminated

Griseofulvin, itraconazole, terbinafine

Rapidly progressing or CNS Amphotericin B

Indolent non-CNS

Itraconazole

Maintenance AIDS

Itraconazole

Mucormycosis

Amphotericin B

Pseudallescheriasis

Voriconazole, itraconazole

Sporotrichosis

Cutaneous

Itraconazole

Extracutaneous

Amphotericin B, itraconazole

Prophylaxis in the

Fluconazole

immunocompromised host Posaconazole

Micafungin

Empirical therapy in the Amphotericin B

immunocompromised host Caspofungin

(category not recognized Fluconazole

by FDA)

The cost of the lipid formulations of amphotericin B greatly

exceeds that of C-AMB, making them unavailable in many countries.

Mechanism of Action. The antifungal activity of amphotericin B

depends principally on its binding to a sterol moiety, primarily ergosterol

in the membrane of sensitive fungi. By virtue of their interaction

with these sterols, polyenes appear to form pores or channels

that increase the permeability of the membrane, allowing leakage of

a variety of small molecules (Figure 57–1).

Absorption, Distribution, and Excretion. Gastrointestinal (GI) absorption

of all amphotericin B formulations is negligible. Pharmacokinetic

properties differ markedly between preparations with L-AMB

having the highest plasma concentrations at therapeutic doses

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