14.4, 14.6, 14.7 Flashcards

1
Q

What is the MOA of antifungal drugs?

A

Disruption of sterol synthesis and membrane integrity

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2
Q

What are imidazoles, triazoles, allylamines, and polyenes prominent drugs of?

A

Antifungal drugs

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3
Q

What antifungal drugs disrupts ergosterol biosynthesis, commonly used in medical and agriculture, and treats infections caused by dematophytes (ringworm, tinea pedis- athlete’s foot, tinea cruris- jock itch)

A

Imidazoles

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4
Q

Which antifungal drugs inhibit ergosterol biosynthesis, administered orally or intravenously, and used for systemic yeast infections: oral thrush, cryptococcal meningitis?

A

Triazoles

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5
Q

Which antifungal drug inhibit earlier step in ergosterol biosynthesis, treat dermatophytic skin infection: athelete’s foot, ringworm, jock itch; an example is terbinafine (Lamisil)

A

Allylamines

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6
Q

What antifungal drugs bind to ergosterol and create pores in the membrane?

A

Polyenes

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7
Q

Which antifungal drug interferes with DNA replication and protein synthesis?

A

Flucytosine

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8
Q

Which antifungal drug inhibit B(1-3) glucan synthesis; penicillin for fungi?

A

Echinocandins

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9
Q

Which antifungal drugs inhibit chitin synthesis?

A

Polyoxins and nikkomycins

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10
Q

Which antifungal drugs interferes with microtubules involved in spindle formation during mitosis?

A

Griseofulvin

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11
Q

What antifungal drug is an antimetabolite for fungal and protozoal mitochondrial cytochrome function

A

Atovaquone

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12
Q

What are the 2 main MOAs of Antiprotozoan Drugs

A

Inhibition of various metabolites and DNA synthesis

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13
Q

What antiprotozoan drug inhibits Electron transport and is used for Malaria, babesiosis, toxoplasmosis?

A

Atovaquone

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14
Q

What antiprotozoan Drug inhibits folic acid synthesis?

A

proguanil

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15
Q

What antiprotozoan drug inhibits DNA synthesis and is used on dysentery, giardia, and trichomoniasis?

A

Metronidazole

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16
Q

What antiprotozoan drugs cleaves DNA within kinetoplasts; binds tRNA and is used on African sleeping sickness, leishmaniasis?

A

Pentamidine

17
Q

Which antiprotozoan drug is unclear, but likely damages target cells by ROS (reactive oxygen species); antimalarial?

A

Artemisinin

18
Q

Which antiprotozoan drug interferes with heme detoxification and is used for malaria and dysentery?

A

Quinolines

19
Q

Which antihelminthic drug is involved with the inhibition of microtubule formation? What spectrum does it have?

A

Mebendazole

20
Q

What antihelminthic drug blocks neuronal transmission in invertebrates causing starvation, paralysis, and death?

A

Ivermectin

21
Q

Which antihelminthic drug inhibit ATP formation under anaerobic conditions?

A

Niclosamide

22
Q

Which antihelminthic drug induce influx of Ca into the worm; paralysis

A

Praziquantel

23
Q

What is the common MOA of Antiviral Drugs?

A

Inhibiting nucleic acid synthesis

24
Q

What antiviral drug does viral enzyme activation and affinity for viral DNA polymerase?

25
What antiviral drugs is made for the treatment of influenza A; MOA: binds to transmembrane protein; blocking escape from endosome prevents RNA release into host cells
Amantadine and Rimantadine
26
What antiviral drug has an MOA of inhibition of neuraminidase that aids in release of viral particles from host cell?
Oseltamivir
27
These describe what? - targets CD$+ WBC - retrovirus; incorporates into host genome (hides) - rapid development of antiviral drug resistance
Why HIV is difficult to treat
28
What usually includes “cocktail” of antivirals to target multiple processes?
ART - Antiretroviral therapy
29
Which antiviral in ART blocks RNA -> DNA
Reverse transcriptase inhibitors
30
What antiviral in ART blocks processing of viral proteins
Protease inhibitors
31
What antiviral in ART prevents integration of viral DNA into host chromosome?
Integrase inhibitors
32
What antiviral in ART prevents binding of virus to host cell and merging of envelope and membrane
Fusion inhibitors
33
What is it the test called when it’s used to examine degree of susceptibility/resistance?
Kirby-Bauer: Disk diffusion
34
What is the area of antibacterial activity around drug impregnated disk called?
Zone of Inhibition
35
What is lowest concentration of drug that inhibits visible bacterial growth?
Minimal inhibitory concentration (MIC)
36
What is the lowest drug concentration that kills >99.9%
Minimal bactericidal concentration (MBC)
37
What is the combo of Kirby-bauer assay and dilution method; strip with antibacterial gradient placed on agar plate?
Etest