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antiprotozoal
antiprotozoal drugs
22
Medical
Graduate
04/24/2011

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Term
chloriquinone
Definition
accumulation in food vacuole, blocks heme poly 2. first choice antimalarial for ovm, and cq- sensitive f, can be profylaxis, eryhtrocytic forms, EFFEECTive againts gametocytes other than falciparum 3.well abrosbed GI and IM 4.safe, when dosed too rapidly may cause cardio, cns , GI effects, aslo hemolysis in G6PD dficiency
Term
malarone
Definition
cq=restistant for mild attacks, can be used for profvx
Term
doxycycline
Definition
use with oral quinine for cq resistance for mild attacks instead of malarone. If attack is svere, use iv quinine, doxy can be used for prof
Term
meflqouine
Definition
MOA-UNK 2.can be used for prof, has falciparum activity and vivax actviity 3. taken orally, absorp aided by food 4.conntraindicated for patients w cardio conduction abnormalities. Teratogenic at high doses.
Term
quinine
Definition
samemoa as cq, but more toxic and less effewctive 2. firstlinine treatment w antifolates for cq-resistnace, erythrocytic forms, EFFEECTive againts gametocytes other than falciparum 3.cinchonism-tinnitus, visual distrub, geadache; hem disturbances, hypoglycemia hypotension, EKG abnorm, muscle effects
Term
primaquine
Definition
MOA-UNK 2.only one to eliminatnte latent shizonts, not effective for erythrocytic, gametocidal fo rall maralri parasites. 3. GI wel labsorbed 44. G6PD deficiens, methoglobiniema, and hemolytic anemia. Oterwise no problmes with normal dose, may cause GI stress
Term
antifolates:fansidar: fuladoxine and pryimetamine
Definition
MOA-synergtic effect. Pryimetamine- DHFR inhibitor, Sulfa- Dihydropetrate synthase 2.profylaxis 3. hi toxicity ofsulfa. Severse cutaneous reactions (steven johnson), anemia, contraindicated for pregnant or breast feeding women, or infants
Term
atovaquone
Definition
dstrutpin of mic membrane ptoential , itneferance with atp synth, synergistic with proguanil
Term
proguanil (malarone)
Definition
DHFR inhibtor, synergy of mitock membrane depol by atovaquone 2.resistance emerges rapidly 3. orally, activation by metabolism to cycloguanil,sosloweronset ofaction. 4.p450 metabolism, GI disturbances, contraidnicated in patients with severe renal
Term
metronidzole
Definition
MOA: prodrug- activation of nitro group via sensitive organism, this reduction is resposnbiel forantimicrobial activity. 2.wide variety of anaerobic parasites and bactreia. Kills trophs but not cysts of E hisolitical ,can erdaicdate both intestinal and extraintestinal infections. Clinical use: amebiasis, trichmoniasis.
Term
Iodoquinol
Definition
lumianl amebicide. MOA-UNK 2.not effective agaisnt trophs I nintestianlwal lor extraintestinal tissues, effective only in bowel lumen. 3.GI effects
Term
Dioxandiefuroate
Definition
lumianl amebicide. MOA-UNK
Term
paromomycin sulfate
Definition
amingolucoside antibiotic, used as luminal amebicide 2. renal tox
Term
Sulfa=trimethoprim
Definition
punoemicystis carini, pentamidine may also be used but higher tox. 2. punoemicystis carini, pentamidine may also be used but higher tox.
Term
Pyrimethamine
Definition
treatment of toxoplasmosis, use wit sulfadizine and folinic acid
Term
Suramin
Definition
1.first lyne therapy for early typanosmiasis 2.side effects, GI; and some seizures, and even death
Term
Pentamidine
Definition
alternativee. To first line trypansome
Term
Melarsoprol
Definition
prodrug 2.very nonspecific so lethal to host tissues 3.first line therapy for advanced disease of trypanosoma. 4.very toxic cns effects
Term
elfornithine
Definition
inhbits ornithine decarbox- first step in polyamien biosynt. 2nd line terapy for advanced disease of trapyanosome 4. blood cell effects (thrombocytopenia, lucopenia anemia)
Term
Nifurtimox
Definition
tryponasome treatment, eliminates detectable parastsised but not fully effective at their removal
Term
antimoney treatment (stibogluconate or antimonate)
Definition
interferes with redox 2. treats leishmaniasis 3. pacnreatitis, liver damage bone marrow suppresion muscle and joint pain
Term
amghotercin b
Definition
drug of choice for resistance of leishmania to antimoney
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