Definition

1. Noun:
   • A synthetic antimalarial drug: Primaquine is a medication used to treat and prevent malaria, specifically targeting the dormant liver stages of Plasmodium vivax and Plasmodium ovale parasites to prevent relapses.

Usage Examples

• Noun:
  • The doctor prescribed a course of primaquine to prevent a relapse of malaria.
  • Primaquine is often used in combination with other antimalarial drugs for a complete treatment.

Advanced Usage

• "Primaquine therapy": Refers to a treatment regimen using this specific drug.

  • The patient began primaquine therapy after the acute phase of the infection was controlled.

• "Primaquine sensitivity": Often discussed in the context of a genetic condition (G6PD deficiency) where the drug must be used with caution.

  • Testing for G6PD deficiency is crucial before administering primaquine due to primaquine sensitivity.

Variants and Related Words

• Primaquine phosphate: The salt form commonly used in pharmaceutical preparations.
  • The tablet contains 26.3 mg of primaquine phosphate, equivalent to 15 mg of the base drug.

Synonyms

• Antimalarial (drug): A general term for medications used against malaria.
• 8-aminoquinoline: Refers to the chemical class of drugs to which primaquine belongs.

Related Phrases

• "Primaquine-resistant": Describing malaria parasites that are not effectively killed by the drug.

  • Reports of primaquine-resistant strains are a concern for global malaria control.

• "Primaquine prophylaxis": The use of the drug to prevent malaria infection.

  • Travelers to certain regions may require primaquine prophylaxis.

Notes

• Primaquine is distinct from drugs used only for treating acute malaria attacks (like chloroquine or artemisinin derivatives) due to its unique action on dormant liver parasites (hypnozoites). Its use requires medical supervision, particularly screening for glucose-6-phosphate dehydrogenase (G6PD) deficiency to avoid the risk of severe hemolytic anemia.

Noun

1. synthetic antimalarial drug