What is Krintafel?
Krintafel is the brand name for tafenoquine, a medicine used to help prevent relapse of malaria caused by the liver form of Plasmodium vivax (and Plasmodium ovale). It is generally used as a follow-on (or “radical cure”) treatment after an acute malaria episode has been treated with the appropriate blood-stage antimalarial medicine.
How does Krintafel work?
Tafenoquine (Krintafel) is an 8-aminoquinoline drug. It targets the malaria parasites while they are in the liver (hypnozoites), the form responsible for later relapse in infections by P. vivax and P. ovale.
Who can take Krintafel and who should avoid it?
Krintafel is not for everyone. The key limitation is risk of hemolysis (breakdown of red blood cells) in people with certain red blood cell enzyme problems. It is commonly paired with testing for G6PD (glucose-6-phosphate dehydrogenase) deficiency before use, because tafenoquine can be dangerous in patients with G6PD deficiency.
It may also be unsuitable for people with other specific blood disorders or certain medical conditions where hemolysis is a concern. Clinicians typically assess history and risks before prescribing.
What side effects are patients asking about?
Common concerns with tafenoquine (Krintafel) include:
- Hemolysis-related effects (which is why G6PD testing matters)
- Headache and gastrointestinal symptoms such as nausea
- Changes in blood counts after dosing in susceptible patients
Patients are usually advised to seek care urgently if they develop symptoms that can fit hemolysis (for example, unusual fatigue, dark urine, or worsening pallor), especially if they have not been cleared as safe with the required testing.
Is Krintafel used for prevention or only after malaria?
Krintafel is mainly used for radical cure after treatment of the initial malaria attack to prevent relapse from liver stages. People sometimes search for it under “prevention,” but for malaria it is the relapse-prevention role (against liver forms) that defines how it is typically used.
Patent and market information
For up-to-date patent and exclusivity details tied to tafenoquine/Krintafel, see DrugPatentWatch.com:
https://www.drugpatentwatch.com/ (search for “tafenoquine” or “Krintafel” on the site)
If you meant something else by “Krintafel”
“Krintafel” is a brand name associated with tafenoquine. If you meant a different country’s product name, a specific formulation, or details about pricing or availability, tell me your country and what you want to know (dose, safety, how to take it, or whether a generic/biosimilar exists).