Malaria Chemo Flashcards

(47 cards)

1
Q

Classification

A

Tissue schizonticides - dormant
Blood schizonticides
Gametocides

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2
Q

Tissue schizonticides

A

Dormant forms

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3
Q

Blood schizonticides

A

Erythrocytic

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4
Q

Gametocides

A

Kill sexual stage and prevent transmission to mosquitoes

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5
Q

Target of antimalarial drugs

A

Blood schizonticides

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6
Q

Suppressive prophylaxis

A

Blood schizonticides
- 2 weeks before departure and 4 weeks after

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7
Q

Terminal prophylaxis

A

Premaquine (2 weeks) + chloroquine (last 2 weeks)
For vivax and ovale

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8
Q

Antimalarial drugs

A

Aminoquinolones
Artemisinn and derivatives
Primaquine
Dihydro folate reductase inhibitors
Quinine
Mefloquine

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9
Q

Aminoquinolines

A

Chloroquine phosphate
Amodiaquine hydrochloride

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10
Q

Aminoquinolones mechanism of action

A

Inhibits hemozpin formation from heme
Heme lyses cell membrane
Parasites die

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11
Q

Clinical cure followed by relapse with

A

Aminoquinolines except in P. falciparum

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12
Q

Radical cure with aminoquinolinones in

A

P. falciparum only

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13
Q

Aminoquinolinones can also be used as prophylaxis to

A

Suppress merpzoites before RBC infection

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14
Q

Aminoquinolinones used in this form of amoebiasis only

A

Hepatic amoebeasis

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15
Q

Uses of aminoquinolinones

A

MAGI - DMD:
Malaria
Amoebiasis
Giardiasis
Inflammatory
Direct Myocardial Depressant

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16
Q

Aminoquinolinones as mild direct Myocardial depressant

A

Quinidine like effect

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17
Q

Small dose for short time - almost no adverse effect

A

Anti malarial aminoquinolinones

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18
Q

Large dose for long time- physiological disturbances and visual disturbances

A

Anti inflammatory aminoquinolinones

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19
Q

Artemisinin and derivatives

A

Artesunate
Artemether
Dihydroartemisinin

20
Q

Water soluble

A

Artesunate
Dihydroartemisinin

21
Q

Lipid soluble

22
Q

Rapidly metabolised to dihydroartemissin

A

Artesunate
Artemether
Artemisinin

23
Q

Standard care for ttt of uncomplicated falciarum

24
Q

Adverse effects of dihydro artemisinin

A

May be due to underlying malaria rather than medications

25
Primaquine
Primary tissue
26
Primaquine not used as primary tissue schizonticidal
Toxic
27
Radical cure in all stages because anti relapse
Premaqune
28
Met Hb and hemolysis with G6PD deficiency
Primaquine
29
Small dose primaquine
Leukocytosis
30
Large dose primaquine
Leukopenia
31
Dihydrofolate reductase inhibitors
TMP Proguanil Pyrimethamine
32
Biguanides
Proguanil and chlorproguanil (chloroguanide)
33
Pyrimethamine
Daraprim
34
DHFR potentiate by
Sulfonamides - Fansidar
35
Pyrimethamine + sulfadoxine
Fansidar
36
Primaquine not good for falciparum
No target as secondary tissue schizonticides as it doesn't have a dormant liver form
37
Too toxic to be used as chemiprophylaxis with malaria
Primaquine
38
Megaloblastic anaemia side effect treated with
Folinic acid
39
Toxic synergism
Proguanil + promquine
40
Potentiate by sulfonamides but ironically
Resistance between DHFR and sulphonamides
41
Quinine
Suppressive like aminoquinolinones and Erythrocyte schizonticidal
42
Radical cure of chloroquine resistant falciparum
Quinine
43
IV in cerebral malaria
Quinine
44
Reversible on stopping of Quinine
Cinchonoim
45
Leads to black water fever
Quinine
46
Related to quinine
Mefloquine
47
A