WorksheetsAnti-fungals
Total questions: 46
Worksheet time: 24mins
Structural requirements for nystatin:
1. Has the glycone known as nystatinolide
2. Contains a mycosamine sugar
3. It is an example of hexaene
1, 2, and 3
2 and 3
2 only
1 and 2
An anti-fungal that can act as mitotic spindle poison
(a)
Which among the following statement is correct about ciclopirox?
1. AOC for cutaneous candidiasis
2. AOC for various Tinea infection
3. DOC for onychomycosis
1 and 2
1, 2, and 3
2 only
1 and 3
Which among the following can inhibit squalene epoxidase?
nystatin
metronidazole
fluconazole
terfenadine
Which among the following is an example of polyene antifungal antibiotics:
1. Griseofulvin 2. Nystatin 3. Natamycin 4.Amphotericin B
2 and 3
2, 3, and 4
1 and 2
1
First orally active broad spectrum imidazole antifungal:
fluconazole
ketoconazole
miconazole
voriconazole
Which among the following does not belong the group?
Posaconazole
Ibruxafungerp
Voriconazole
Osteconazole
The sterol that is commonly targeted by antifungal agents, the sterol referred to is
(a)
A thiosester of b-naphthol that is capable of inhibiting squalene epoxidase is
(a)
The following limitations are associated with the use of polyenes, except:
1. good water solubility
2. it is nephrotoxic esp. amphotericin B
3. it chemically stable
1 and 3
1 and 2
2 and 3
2 only
Isolated from Aureobasidium pullulan. This product is known as
(a)
Polyene antifungals possess conjugated double bonds, which among the following is/are correct?
Nystatin is a pentaene
Amphotericin B is heptaene
Natamycin is hexaene
Nystatin is a heptaene
For the treatment of systemic mycosis, which of the following antifungal agents can be administered by intravenous route?
Nystatin
Clioquinol
Tolnaftate
Amphotericin B
The “toxic” sterol produced by inhibiting lanosterol 14a-demethylase
(a)
Which among the following is true about 5-FU?
1. It can inhibit protein synthesis
2. It can inhibit DNA synthesis
3. It is activated from flucytosine by the help of cytosine permease
1 and 2
2 only
1 only
1, 2, and 3
What is the aglycone found on the structure of nystatin?
(a)
(a) is the oily, waxy substance produced by the sebaceous gland.
Which among the following fatty acid is found normally on perspiration as fungicidal agent?
Benzoic acid
Propionic acid
Ciclopirox
Haloprogin
The most common problem associated with the use of amphotericin B thus making it as the last option for systemic antifungal therapy is
NEPHROTOXICITY
HEPATOTOXICITY
NONE OF THE CHOICES
N&V
An example of anti-fungal antibiotics:
griseofulvin
NONE
itraconazole
streptomycin
Which of the following is considered the treatment of choice for Aspergillus infections in immunocompetent and immunocompromised patients?
itraconazole
posaconazole
voriconazole
fluconazole
Drug interactions can occur with all azoles but are LESS likely with which of the following drugs?
posaconazole
fluconazole
voriconazole
itraconazole
Which among the following is/are true about this structure:
1. it is an example of triazole antifungal
2. it is an example of imidazole antifungal agent
3. it possess piperazine ring
2 only
1 and 3
1 and 2
3 only
Griseofulvin must be given on a high fat meal.
True
False
Either
Any substitution on the triazole or imidazole is allowed provided that an electron withdrawing group is present.
T
F
Benzoic acid is an example of antifungal that cannot penetrate the skin, hence effective in the management of topical fungal infection
T
F
Presence of an electron withdrawing group found on the aromatic ring enhances antifungal property of azole antifungals.
T
F
The salt form of fatty acid that can be used as antifungal are static in nature.
T
F
Skin is considered as a formidable barrier for drug penetration and absorption.
t
f
Undecylenic acid is a product of the destructive distillation of ricinoleic acid from castor oil.
T
F
To become an effective keratolytic agent, benzoic acid is not used with other drug so that it can enhances drug penetration.
t
f
The polyene antifungals can act as false membrane component.
T
F
Chemically speaking, terbinafine is not a true example of allylamine.
T
F
MOA or chemical classification: allylamine
itraconazole
naftifine
5-FU
haloprogin
MOA or Chemical Classification: triazole type
haloprogin
itraconazole
nystatin
5-FU
phenolic
haloprogin
itraconazole
nystatin
5-fu
nucleoside anti-fungal
itraconazole
ketoconazole
5-FU
nystatin
polyene antifungal - antibiotic
nystatin
5-FU
naftifine
ketoconazole
sodium caprylate
fatty acids
B-1,3-glucan synthase inhibitor
allylamine type
none
caspofungin
B-1,3-glucan synthase inhibitor
protease inhibitor
allylamine type
fatty acids
terfenadine
allylamine type
B-1,3-glucan synthase inhibitor
fatty acids
antifungal-antibiotic
Tinea capitis
feet
groin
scalp
hands
Tinea cruris
body skin
feet
hands
groin
Tinea corporis
body skin
groin
feets
scalp
Salicylic acid with resorcinol and benzoic acid can produce synergistic effect.
t
f
DOC: fungal meningitis
Itraconazole
Ketoconazole
Miconazole Nitrate
Terconazole
