A report on Sulfadoxine/pyrimethamine

Combination medication used to treat malaria.

- Sulfadoxine/pyrimethamine

8 related topics with Alpha

Overall

Antimalarial medication

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Antimalarial medications or simply antimalarials are a type of antiparasitic chemical agent, often naturally derived, that can be used to treat or to prevent malaria, in the latter case, most often aiming at two susceptible target groups, young children and pregnant women.

Antimalarial medications or simply antimalarials are a type of antiparasitic chemical agent, often naturally derived, that can be used to treat or to prevent malaria, in the latter case, most often aiming at two susceptible target groups, young children and pregnant women.

When administered alone sulfonamides are not efficacious in treating malaria but co-administration with the antifolate pyrimethamine, most commonly as fixed-dose sulfadoxine-pyrimethamine (Fansidar), produces synergistic effects sufficient to cure sensitive strains of malaria.

Artesunate

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Medication used to treat malaria.

Medication used to treat malaria.

Artesunate + sulfadoxine/pyrimethamine for treatment of P. vivax is not recommended due to high rates of resistance.

Malaria parasite connecting to a red blood cell

Malaria

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Mosquito-borne infectious disease that affects humans and other animals.

Mosquito-borne infectious disease that affects humans and other animals.

Malaria parasite connecting to a red blood cell
Main symptoms of malaria
The life cycle of malaria parasites. Sporozoites are introduced by a mosquito bite. They migrate to the liver, where they multiply into thousands of merozoites. The merozoites infect red blood cells and replicate, infecting more and more red blood cells. Some parasites form gametocytes, which are taken up by a mosquito, continuing the life cycle.
Micrograph of a placenta from a stillbirth due to maternal malaria. H&E stain. Red blood cells are anuclear; blue/black staining in bright red structures (red blood cells) indicate foreign nuclei from the parasites.
Electron micrograph of a Plasmodium falciparum-infected red blood cell (center), illustrating adhesion protein "knobs"
The blood film is the gold standard for malaria diagnosis.
Ring-forms and gametocytes of Plasmodium falciparum in human blood
An Anopheles stephensi mosquito shortly after obtaining blood from a human (the droplet of blood is expelled as a surplus). This mosquito is a vector of malaria, and mosquito control is an effective way of reducing its incidence.
Man spraying kerosene oil in standing water, Panama Canal Zone, 1912
Walls where indoor residual spraying of DDT has been applied. The mosquitoes remain on the wall until they fall down dead on the floor.
A mosquito net in use.
An advertisement for quinine as a malaria treatment from 1927.
Deaths due to malaria per million persons in 2012
Past and current malaria prevalence in 2009
Ancient malaria oocysts preserved in Dominican amber
British doctor Ronald Ross received the Nobel Prize for Physiology or Medicine in 1902 for his work on malaria.
Chinese medical researcher Tu Youyou received the Nobel Prize for Physiology or Medicine in 2015 for her work on the antimalarial drug artemisinin.
Artemisia annua, source of the antimalarial drug artemisinin
U.S. Marines with malaria in a field hospital on Guadalcanal, October 1942
Members of the Malaria Commission of the League of Nations collecting larvae on the Danube delta, 1929
1962 Pakistani postage stamp promoting malaria eradication program
Malaria clinic in Tanzania
Child with malaria in Ethiopia
World War II poster
Disability-adjusted life year for malaria per 100,000 inhabitants in 2004 no data <10 0–100 100–500 500–1000 1000–1500 1500–2000 2000–2500 2500–2750 2750–3000 3000–3250 3250–3500 ≥3500

Occasional doses of the combination medication sulfadoxine/pyrimethamine are recommended in infants and after the first trimester of pregnancy in areas with high rates of malaria.

2017 marked the 40th anniversary of the WHO Model List of Essential Medicines.

WHO Model List of Essential Medicines

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The WHO Model List of Essential Medicines (aka Essential Medicines List or EML ), published by the World Health Organization (WHO), contains the medications considered to be most effective and safe to meet the most important needs in a health system.

The WHO Model List of Essential Medicines (aka Essential Medicines List or EML ), published by the World Health Organization (WHO), contains the medications considered to be most effective and safe to meet the most important needs in a health system.

2017 marked the 40th anniversary of the WHO Model List of Essential Medicines.
A skeletal model of the chemical structure of aspirin
A skeletal model of the chemical structure of albendazole
Pure crystals of ethambutol
Two capsules of atazanavir
Bag containing one unit of fresh frozen plasma
A vial of oral cholera vaccine

Sulfadoxine/pyrimethamine (sulfadoxine + pyrimethamine)

Plasmodium vivax

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Protozoal parasite and a human pathogen.

Protozoal parasite and a human pathogen.

An exception is artesunate plus sulfadoxine-pyrimethamine (AS+SP), which is not effective against P. vivax in many places.

Amodiaquine

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Medication used to treat malaria, including Plasmodium falciparum malaria when uncomplicated.

Medication used to treat malaria, including Plasmodium falciparum malaria when uncomplicated.

Though, the WHO in 2013 recommended use for seasonal preventive in children at high risk in combination with sulfadoxine and pyrimethamine.

Pyrimethamine

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Medication used with leucovorin to treat the parasitic diseases toxoplasmosis and cystoisosporiasis.

Medication used with leucovorin to treat the parasitic diseases toxoplasmosis and cystoisosporiasis.

Synthesis of pyrimethamine typically begins with p-chlorophenylacetonitrile, which undergoes a condensation reaction with ethyl propionate ester; the product of this then reacts with diazomethane to form an enol ether, which reacts with free guanidine in a second condensation reaction.

In combination with a long-acting sulfonamide such as sulfadiazine, it was widely used, such as in Fansidar, though resistance to this combination is increasing.

Sulfadoxine

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Sulfadoxine (also spelled sulphadoxine) is an ultra-long-lasting sulfonamide used in combination with pyrimethamine to treat malaria.