Treatment of Malaria

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QUESTION

How is malaria treated?

ANSWER

Malaria can be a severe, potentially fatal disease (especially when caused by Plasmodium falciparum) and treatment should be initiated as soon as possible.

Patients who have severe P. falciparum malaria or who cannot take oral medications should be given the treatment by continuous intravenous infusion.

Most drugs used in treatment are active against the parasite forms in the blood (the form that causes disease) and include:

  • chloroquine
  • atovaquone-proguanil (Malarone®)
  • artemether-lumefantrine (Coartem®)
  • mefloquine (Lariam®)
  • quinine
  • quinidine
  • doxycycline (used in combination with quinine)
  • clindamycin (used in combination with quinine)
  • artesunate (not licensed for use in the United States, but available through the CDC malaria hotline)

In addition, primaquine is active against the dormant parasite liver forms (hypnozoites) and prevents relapses. Primaquine should not be taken by pregnant women or by people who are deficient in G6PD (glucose-6-phosphate dehydrogenase). Patients should not take primaquine until a screening test has excluded G6PD deficiency.

How to treat a patient with malaria depends on:

  • The type (species) of the infecting parasite
  • The area where the infection was acquired and its drug-resistance status
  • The clinical status of the patient
  • Any accompanying illness or condition
  • Pregnancy
  • Drug allergies, or other medications taken by the patient

If you have or suspect you have malaria, you should contact your doctor immediately.

Curing Malaria

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QUESTION

What is needed to cure malaria?

ANSWER

Malaria is usually cured through treatment with an anti-malarial drug. The World Health Organization recommends use of an ACT (artemisinin-based combination therapy, such as Coartem) as first-line treatment for all non-complicated (i.e. not severe) malaria, and especially P. falciparum malaria (which in most places is resistance to chloroquine, and also to mefloquine in some locations). For complicated, severe malaria, or in cases where the patient is unable to take medication orally, the recommended treatment is intravenous quinine.

Malaria Treatments

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QUESTION

What are the of different types of antimalaria drugs?

ANSWER

Most drugs used in treatment are active against the parasite forms in the blood (the form that causes disease) and include:

  • chloroquine
  • atovaquone-proguanil (Malarone®)
  • artemether-lumefantrine (Coartem®)
  • artesunate-pyronaridine (Pyramax®)
  • dihydroartemisinin-piperaquine (Duo-Cotecxin®)
  • mefloquine (Lariam®)
  • quinine (given intravenously, this is recommended first-line treatment for severe, complicated malaria)
  • quinidine
  • doxycycline (used in combination with quinine)
  • clindamycin (used in combination with quinine)

All of the treatments above which combine an artemisinin-derivative (such as artemether, artesunate or dihydroartemisinin) in combination with another anti-malarial are called the artemisinin-based combination therapies (ACTs) and are collectively recommended by the World Health Organisation as the first line medication against uncomplicated malaria.

In addition, primaquine is active against the dormant parasite liver forms (hypnozoites) and prevents relapses. Primaquine should not be taken by pregnant women or by people who are deficient in G6PD (glucose-6-phosphate dehydrogenase). Patients should not take primaquine until a screening test has excluded G6PD deficiency.

Repeated Malaria

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QUESTION

Since January 2011 I got three times malaria. Is it come regularly? Last week also I got maleria and I took medicine but still I have mild headache and sweating feeling tiredenes in between..

ANSWER

The timing of the repeated malaria episodes you have experienced means that it could be recrudescence (where treatment does not completely kill all the malaria parasites in your blood), relapse (where the malaria goes dormant in your liver, then comes back—this is only caused by Plasmodium vivax and Plasmodium ovale malaria) or even re-infection.

However, first of all, the most important thing is to make sure you are properly diagnosed with malaria and secondly, that you receive the right type of treatment for the kind of malaria that you have.

The symptoms of malaria are very general (fever, chills, nausea, tiredness, aches) and can also be caused by many other illnesses and diseases. As such, in order to confirm you actually have malaria, you should have a blood test (thick and thin blood smear, looked at under the microscope by a trained technician, or a rapid diagnostic test (RDT). In some places you can buy these RDTs from local pharmacies and do the test yourself at home).

Depending on where you live, there may be different types of malaria present; in this case, if you do have malaria, it is important to find out which one you have.

P. falciparum is the most common kind in sub-Saharan Africa and first-line treatment is an artemisinin-based combination therapy, such as Coartem – most areas have P. falciparum that is resistant to chloroquine, so this is not appropriate as treatment, nor are sulfadoxine and pyrimethamine combinations (such as Fansidar).

If you have P. vivax or P. ovale, chloroquine may be used, again depending on where you are and whether resistance is known from your area or not. In addition, you might also talk to your doctor about taking primaquine to prevent future relapse and recurrence of the infection.

Repeated re-infection can be prevented by protecting yourself more thoroughly against getting bitten by an infected mosquito. For example, you should sleep under a long-lasting insecticide treated bednet, screen your windows and doors and wear long-sleeved clothing at night and in the evenings. Indoor residual spraying, which coats your walls with insecticide, can also prevent mosquitoes from persisting inside your home.

Malaria Recurrence and Treatment

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QUESTION

Since September 2011 I had malaria falciparum. The first medication I took was Coartem, after 2 weeks  I had the same symptoms then the test was +1.5 ,i took Coartem again. 2 weeks after the doctor gave me Malarone ,then 19 days it come back . the doc. gave me Quinine -tablets without doxycycline. but no thing change.

Until now each 14-25 days the malaria comes back, I ask my doctor to do any extra test or to do any thing else, but he told me that “I don’t have severe malaria.”  So why all this medication but i still sick??

On 10 feb 2012 I took Artequin. I feel better but after 15 days it came back , then I take Artequin again. I`m confused what to do?
PLEASE HELP!!!

ANSWER

I think I replied to the comment you made on the “Diagnostic Advice” Q&A post – I will copy the response I wrote there below:

It is certainly unusual to have such persistent malaria; usually Coartem cures it very quickly. Where are you obtaining your medication? It could be that the drugs you took were out of date (expired) or counterfeit; this can decrease efficacy and lead to a reduction of symptoms but not a complete cure. Also, what kind of test is your doctor using? If it is a blood smear, you might want to ask if another technician could read the slides, to double-check the diagnosis. I have seen cases elsewhere in Africa where doctors diagnose malaria by default without really examining the blood slide closely. You could try to get a malaria rapid diagnostic test; this looks for specific proteins associated with malaria infection in your blood, and can be more sensitive than blood slides. You can even perform these tests at home, so double check what the doctor tells you.

Otherwise, if you are truly getting re-infected very rapidly, you should look into more effective preventive measures against getting bitten by mosquitoes. This includes sleeping under a long-lasting insecticide treated bednet, wearing long-sleeved clothing at night and in the evenings and applying insecticide to exposed skin.

P. Falciparum Malaria Treatment

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QUESTION

I dont have high fever yet have been diagnosed with P. falciparum malaria. How can this disease be treated and is it completely curable?

ANSWER

Don’t worry, if diagnosed early and given appropriate treatment, P. falciparum infection is very easily cured. You should be given a type of medication called artemisinin-based combination therapy (ACT). An example is Coartem, which is a combination of artemether and lumefantrine.

Other artemisinin derivatives that are commonly used include artesunate and dihydroartemisinin. You should start to feel better after just a few days and will make a complete recovery. Make sure you get the correct dose for your age and weight from the doctor, and take the medication for the full length of time the doctor tells you – this is very important to make sure the infection is completely cured, otherwise the infection may be able to come back.

Dangerous

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QUESTION

Why malaria so dangerous?

ANSWER

Malaria can be dangerous for a number of different reasons, some of which relate to each other. First of all, there are five different types of malaria that infect humans, and each varies in terms of its severity and potential for severe consequences. Even within these types, the severity of the disease caused (termed “virulence” by scientists and doctors), can even vary by strain or geography. Generally, the most dangerous form of malaria is caused by Plasmodium falciparum. One reason why this species of malaria is so dangerous is that is replicates very quickly in the blood. This means that infection levels can build up very quickly; if a person infected with P. falciparum does not get diagnosed and treated within a few days of feeling sick, the infection can progress to a point where the disease becomes very severe. This rapid accumulation of infection is also observed with P. knowlesi, a much rarer form of malaria found in south-east Asia. The parasites of P. knowlesi have a 24-hour reproductive cycle in the blood, the quickest for any type of malaria that infects humans. However, P. falciparum also has other characteristics which make it even more dangerous, and which do not occur with P. knowlesi. For example, when P. falciparum infects red blood cells, it causes their shape to change, and makes them “sticky”. This stickiness causes the red blood cells to become lodged in the blood vessels leading in to major organs, in a process known as sequestration. Sequestration creates blockages of these blood vessels, reducing blood flow and resulting in oxygen deprivation. When this process occurs in the blood vessels in the brain, the outcome is known as cerebral malaria, characterised by impaired consciousness, coma and even death. It is this pathology which is associated with most cases of severe malaria, and causes the most number of deaths.

However, if treated promptly with the correct drugs, even P. falciparum malaria is usually easily controlled. Therefore, one of the additional reasons why malaria is so dangerous is that in many places, and particularly sub-Saharan Africa, people do not have access to medication, or not the right types of medication. Many strains of P. falciparum have become resistant to chloroquine, once the first line treatment for malaria, and so this drugs is now ineffective in many cases. Instead, the World Health Organisation recommends now that artemisinin-based combination therapies (ACTs, such as Coartem) should be given as first-line treatment against all uncomplicated malaria, to prevent additional resistance from developing.

How is Malaria Treated

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QUESTION

How is malaria treated today?

ANSWER

Several different medications exist which are used for the treatment of malaria. The exact drug and method of treatment depends somewhat on the type of malaria the patient is infected with.

In most cases of non-complicated (i.e. when the patient is stable and conscious) malaria, the World Health Organisation recommends an orally-administered (in the form of solid pills) artemisinin-based combination therapy (ACT), such as Coartem (a combination of artemether and lumefantrine). Other types of medication include atovaquone-proguanil (Malarone) and sulfadoxine-pyrimethamine (Fansidar). In some locations, where chloroquine-resistance is not a problem, chloroquine can also be used as a treatment. For complicated malaria, where the patient is in a more severe state, intravenously administered quinine is usually the first-line treatment.

If diagnosed early and the patient is given appropriate medication, virtually all cases of uncomplicated malaria can be effectively treated.

Cure for Malaria

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QUESTION

Is there a cure for Malaria?

ANSWER

Yes. Several different medications exist which are used for the treatment of malaria. The exact drug and method of treatment depends somewhat on the type of malaria the patient is infected with. In most cases of non-complicated (i.e. when the patient is stable and conscious) malaria, the World Health Organisation recommends an orally-administered (in the form of solid pills) artemisinin-based combination therapy (ACT), such as Coartem (a combination of artemether and lumefantrine). Other types of medication include atovaquone-proguanil (Malarone) and sulfadoxine-pyrimethamine (Fansidar). In some locations, where chloroquine-resistance is not a problem, chloroquine can also be used as a treatment. For complicated malaria, where the patient is in a more severe state, intravenously administered quinine is usually the first-line treatment.

If diagnosed early and the patient is given appropriate medication, virtually all cases of uncomplicated malaria can be effectively treated.

Treatment of Malaria in India

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QUESTION

In India how to treat a child and adult suffering from malaria?

ANSWER

Chloroquine-resistant malaria has been observed in India and so the first line drug of choice should be an artemisinin-derivative in combination with another drug (this group of medications are more generally known as “artemisinin-based combination therapies” or ACTs). A common example of this is artemether in combination with lumefantrine, which is marketed as Coartem. Coartem is also used to treat malaria in children over 11 pounds (5 kg) in weight.