Artemether is commonly used to treat which of the following diseases?

DSSSB 12 August 2024

Pharmacology

Easy

Appeared in: DSSSB 12 August 2024

Explanation

Artemether is a derivative of artemisinin, a class of drugs that are the cornerstone of modern antimalarial treatment.
It acts as a rapid blood schizonticide, meaning it quickly kills the malaria parasite (Plasmodium) in its red blood cell stage.
It is particularly effective against Plasmodium falciparum, the species that causes the most severe form of malaria and has developed resistance to older drugs like chloroquine.
To prevent resistance, it is recommended to be used in combination with another longer-acting antimalarial drug, a strategy known as Artemisinin-based Combination Therapy (ACT).

Option A: Typhoid fever is a bacterial infection caused by Salmonella Typhi. The correct treatment involves antibiotics, not antimalarial drugs.
Option C: Cholera is a bacterial infection caused by Vibrio cholerae. Treatment focuses on aggressive fluid and electrolyte replacement, along with antibiotics like doxycycline.
Option D: Dengue is a viral infection transmitted by mosquitoes. There is no specific antiviral medication for Dengue; treatment is supportive, focusing on managing symptoms like fever and preventing dehydration.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacology: Therapeutic use of Artemether as background academic context rather than a clinical decision trigger.
Nurses must be able to differentiate between infectious diseases to anticipate correct treatments and identify potential medication errors. Administering an antimalarial for a bacterial or viral infection would be ineffective and delay appropriate care.
Artemether is often given in a fixed-dose combination with lumefantrine (Co-artem). Nurses should educate patients on the importance of completing the full course of treatment, even if they start to feel better, to ensure complete parasite clearance and prevent resistance.
What if? If the patient had severe or complicated malaria (e.g., cerebral malaria), the treatment would shift from oral artemether to intravenous (IV) artesunate, which is the WHO-recommended drug of choice for severe malaria. This requires intensive nursing care and monitoring in a hospital setting.

How to Approach the Question

First, identify the drug name in the question: 'Artemether'.
Recognize the prefix 'Artem-' as belonging to the artemisinin class of drugs.
Recall that artemisinin and its derivatives are the primary drugs used to treat malaria.
Evaluate the options provided. Typhoid and Cholera are bacterial diseases treated with antibiotics. Dengue is a viral disease managed with supportive care.
Conclude that Malaria, a parasitic disease, is the correct indication for Artemether.

Concept Tested & Keywords

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