Tafenoquine for Relapsing Babesia: A Treatment Option When Standard Therapy Fails
For a complete overview of Babesia symptoms, testing, and treatment, visit our Babesia and Lyme disease guide.
Tafenoquine Babesia treatment may offer hope for patients who relapse after standard therapy.
Patients with relapsing Babesia often present with recurring symptoms such as night sweats, air hunger, and fatigue—despite prior treatment.
Initial Babesia Treatment and First Relapse
The man’s initial Babesia treatment included atovaquone and azithromycin for 10 days.
Two months later he relapsed. His blood smear was again positive.
Second and Third Babesia Relapses
Two months later he experienced a second relapse. Two months later he had a third relapse.
This pattern of repeated relapse is common in patients with chronic Babesia, particularly those who are immunocompromised.
Why Tafenoquine May Help Relapsing Babesia
Tafenoquine is an 8-aminoquinoline and a primaquine analogue approved in 2018 for malaria prophylaxis and relapse prevention.
Experimental studies suggest tafenoquine may help clear Babesia microti in difficult cases.
Implications for Immunocompromised Patients
Relapsing Babesia is more common in immunocompromised patients, including those with asplenia.
These patients often require longer treatment durations.
Frequently Asked Questions About Tafenoquine Babesia Treatment
What is tafenoquine?
Tafenoquine is an antimalarial drug approved in 2018 that has shown promise for treating relapsing Babesia infections.
When is tafenoquine used for Babesia?
It may be considered in patients who relapse after treatment with atovaquone and azithromycin.
Can Babesia become resistant to treatment?
Yes. Resistance to standard therapies has been reported in relapsing cases.
How long is tafenoquine used?
Treatment duration varies but may extend to several weeks in complex cases.
Related Reading
- Babesia and Lyme Disease: Symptoms and Treatment
- Chronic Babesia: Why Some Infections Persist
- Babesia Treatment Duration
Dr. Daniel Cameron, MD, MPH
Lyme disease clinician with over 30 years of experience and past president of ILADS.
Symptoms • Testing • Coinfections • Recovery • Pediatric • Prevention
Tested positive to B. Duncani multiple times, treated with many different AB, including ATovaquone, Malarone, for over a year, they symptoms come back as when I go off AB, and only partially resove when on them, I gave up.
There seems to be no protocol on treating Lyme & Babesia or real diagnostic tool to know what I we are suffering from, a bunch of guessing and very expensive too. The LLMD medicine is really a guessing game with a bunch of AB. & herbs / vitamins based on hearsay, also copy and paste of what the famous Dr. Horowitz or Dr. Jemsek may have speculated sometime in the past. LLMD’s are hesitant to go all in on IVIG or intv. AB, leave it up to the patient to run around to convince someone to treat them. They dont even know when to stop, usually ends when the patient has spent all they got and are coming to term with the pain.
Primary care physicians I have seen say it’s one of the following herniated disk, fibro myalgia, sleep apnea, stress, pre diabetic, and when I developed all of this in such a short period of time, I am told we dont know (or dont care)
I have given up hope.
Joel,
Most of us have the same issue with PC.
I can’t even get them to test for other issues. I begged for years and finally got 2 additional tests when I tested positive for qfever. Then the PC said he didn’t know what to do with the results.
Contacted the health department and they referred me back to the same pc.
Of the several people I know with Babesia duncani (including myself) NOT ONE has been able to eradicate it with any combination of drugs and/or herbs.
I think most anti Protozoa drugs are anti cancer drugs when you can benefit from an unfettered search on internet ( as I can from overseas) and dig about forty pages of repeated material ( yawn) in. I’m so glad you’re feeling better. Babesia has something to teach us all quite obviously. My homeopath doctor in Brasilia also uses magnetic resonance and is quite genius. It’s great you study this and are inspired by your recovery.
I am currently using this to treat a very persistent case of Babesia, and I am immune- compromised. What dose did this person take for six weeks?
“3/10/20 he was started on a 6 week regimen of tafenoquine aloneThe dose was 200 mg daily for three consecutive days and then 200 mg per week, i.e., the regimen FDA approved for malaria prophylaxis” wrote the Marcos LA, etc You can read the article on pubmed at https://pmc.ncbi.nlm.nih.gov/articles/PMC8885462/
Is this treatment successful for patients with additional infections symptoms ch as bartonella, Lyme and Rocky Mtn Spotted Fever?
No
I have been on tafenoquine 200mg weekly for 2 years for chronic babesiosis and I do think it worked well for me.
However my son was treated with the same regimen along with atovaquone for 8 months. For acute babesia duncani the dosage should be prescribed differently.
Thank you for sharing your experience. Treatment decisions, including medication choice, dose, and duration, need to be individualized and guided by a treating clinician. I can’t comment on specific regimens in comments.