Antifungal Flashcards

(38 cards)

0
Q

Trichopyton

A

Infect skin nail & hair

Trichopyton rubrum

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1
Q

Epidermophyton

A

Infect skin & nails

Epidermophyton floccosum

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2
Q

Microsporum

A

Affect hair and skin

Classified by habitat

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3
Q

Tinea pedis

A

T. Interdigitale (t.mentagrophytes complex)

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4
Q

Erythrasma

A

Gram positive bacterial infection
- corynebacterium minutissmum

Improve foot hygiene, topical fusion acdinor clindamycin lotion

Will show up pink under woods light

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5
Q

Pure tic slow spreading brown scale and maceration

A

Erythrasma

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6
Q

What is te only type of onychomycosis to affect the dorsal aspect of the nail plate

A

Superficial white onychomycosis

Usually a result of t.mentagrophytes

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7
Q

Cause of proximal white onychomycosis

A

Most commonly caused by trichophyton rubrum

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8
Q

Unicellular round or oval fungal mycosis

A

True yeasts
Malassezia fur fur
Cryptococcus neoformans

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9
Q

Long non-branching stands of fungal infection

A

Candidia spp.

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10
Q

Long branching filaments of fungi that intertwine forming mycelium causing mycosis

A

Moulds

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11
Q

Trichophyton is classified as a

A

Dermatophyte

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12
Q

Dermatophytes digest

A

Keratin in hair, skin & nails

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13
Q

Amorolfine is the active ingredient in

A

Loceryl 5% paint

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14
Q

Nystatin (topical)

A

Mycostatin

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15
Q

Terbinafine is the active ingredient in

A

Lamisil 1%

Lamisil tablets in specific circumstances

16
Q

Griseofulvin is the active ingredient in

A

Grisovin

Oral in specified circumstances

17
Q

Broad spectrum antifungals

18
Q

Narrow spectrum of antifungal

19
Q

Cell wall synthesis inhibiting antifungals

A

Azoles
Allylamines
Amorolfine
Echinocandins

20
Q

Predominant component of fungal cell wall

21
Q

Antifungals that interfere with cell wall function

A

Amphotericin

Nystatin

22
Q

DNA synthesis inhibiting antifungals

A

Pyrimides - flucytosine

Benzofurines - griseofulvin

23
Q

Miconazole is available as a tincture for use on nails what drug class is it and what is the MOA & brand names

A

Daktarin, Resolve
Azoles - imidazoles
Inhibit enzyme, impairing synthesis of ergosterol in cell wall

24
Imidazoles
All administered topically for 2-4 weeks - Miconazole - clotrimozole - econazole - bifonazole - ketoconazole
25
Triazoles
All given orally - Fluconazole - Itraconazole - Voriconazole - Posaconazole (v serious cases)
26
Canestan oral once-daily, mycospor
Bifonazole (cream1%) Azoles - imidazole Inhibit cell wall synthesis
27
Canesten, clonea
Clotrimozole (cream & lotion 1%) Azoles - imidazole Inhibit cell wall synthesis
28
Pevaryl
Econazole (cream 1%) Azoles - imidazole Inhibit cell wall synthesis
29
Nizoral cream | Daktagold
Ketoconazole (cream 1%) Azoles - imidazole Inhibit cell wall synthesis
30
Fluconazole interacts with
Warfarin - increase INR Anti- arrhytmics (amidarone) increase QT interval Macrolides
31
What Azoles would you use in a severe systemic fungal infection
Voriconazole | Posaconazole
32
In pregnancy the safe Azoles are
Clotrimozole Miconazole And econazole
33
Allylamines
Terbinafine - Lamisil Inhibit an enzyme (squalene epoxidase) preventing ergosterol synthesis Fungicidal against dermatophytes Fungistatic against Candida albicans
34
Terbinafine interactions
Venlafaxine Triglyclic antidepressants Rifampicin
35
Do not use Lamisil for
Longer than 4weeks | Moccasin/plantar type tinea pedis
36
Loceryl
Amorolfine targets 2 enzyme points in synthesis of ergosterol which compromises cell wall Broad coverage for dermatophytes and candida spp (high affinity for keratin)
37
Bifonazole
Urea ointment - softens nail | Bifonazole cream