#Clofazimine
Penicillin, ivermectin, clofazimine #IDSky
October 7, 2025 at 2:01 AM
Pharmacokinetics and safety of clofazimine in children with rifampicin-resistant tuberculosis

✅ Just Accepted
#IDSky
Pharmacokinetics and safety of clofazimine in children with rifampicin-resistant tuberculosis
Paediatric pharmacokinetic and safety data for clofazimine are limited. We described the pharmacokinetics and safety of clofazimine in South African children treated for multidrug/rifampicin-resistant tuberculosis (MDR/RR-TB).
buff.ly
February 23, 2025 at 3:44 PM
Our latest story on Clofazimine resistance in Cryptosporidium! What started as a side project turned into one of the most interesting stories.

Genetics 101 😊

#Cryptosporidium #Apicomplexa #Clofazimine #AntimicrobialResistance #AMR #ParasiteResearch

www.biorxiv.org/content/10.1...
Widespread genomic heterogeneity at the type II NAD(P)H dehydrogenase locus predisposes Cryptosporidium to clofazimine resistance
The parasite Cryptosporidium is a leading cause of life-threatening diarrheal disease, and effective treatment is not available. The discovery of potent anti-Cryptosporidium activity of clofazimine, o...
www.biorxiv.org
October 8, 2025 at 11:25 AM
Clofazimine is @paulsaxmd.bsky.social's choice for weirdest antibiotic, based on its dubious efficacy, unclear mechanism of action, and alarming side effects, such as ruddy skin discoloration
My Vote for the Weirdest Antibiotic on the Planet
If you’re an ID doctor, there’s an excellent chance you’ve treated patients who have non-tuberculous mycobacteria (NTM) with clofazimine. In fact, based on a poll done with the utmost scientific rigor...
blogs.jwatch.org
October 7, 2025 at 2:20 AM
Do you think clofazimine works? I can't think of a single clinical trial where a clofazimine vs a non-clofazimine arm showed that the clofazimine arm did better.

Yes, we use it -- but it sure would be nice to see some robust evidence that it's worth it.
October 7, 2025 at 9:23 PM
Pharmacokinetics and safety of clofazimine in children with rifampicin-resistant tuberculosis

✅ Just Accepted
#IDSky
Pharmacokinetics and safety of clofazimine in children with rifampicin-resistant tuberculosis
Paediatric pharmacokinetic and safety data for clofazimine are limited. We described the pharmacokinetics and safety of clofazimine in South African children treated for multidrug/rifampicin-resistant tuberculosis (MDR/RR-TB).
buff.ly
February 13, 2025 at 3:44 PM
Unless you take a regimen of dapsone, rifampicin and clofazimine for a year
Leprosy will take control and bring you to your Death 🔥
November 28, 2024 at 6:17 PM
#IDsky
#Medsky
Check out this fascinating case report of M. abscessus PD-catheter related peritonitis, treated successfully with combination clofazimine and omadacycline

www.ppidjournal.com/doi10-55636-...
Treatment of Mycobacterium abscessus-Related Peritoneal Dialysis-Associated Peritonitis with Clofazimine and Omadacycline - Private Practice Infectious Disease
Mycobacterium abscessus is a rare cause of peritoneal dialysis-associated peritonitis for which standard therapy has not been defined. Moreover, therapy can often pose a challenge to practitioners due ...
www.ppidjournal.com
January 5, 2025 at 11:56 PM
Cryo-EM reveals MmpL4 structure in TB, crucial for mycobactin secretion and drug resistance. Overproduction of MmpL5 boosts resistance to bedaquiline & clofazimine! #TBScience PMID:39994240, Nat Commun 2025, @NatureComms https://doi.org/10.1038/s41467-025-56888-6 #Medsky #Pharmsky #RNAsky 🧪
Structural basis of siderophore export and drug efflux by Mycobacterium tuberculosis | Nature Communications
To replicate and cause disease, Mycobacterium tuberculosis secretes siderophores called mycobactins to scavenge iron from the human host. Two closely related transporters, MmpL4 and MmpL5, are required for mycobactin secretion and drug efflux. In clinical strains, overproduction of MmpL5 confers resistance towards bedaquiline and clofazimine, key drugs to combat multidrug resistant tuberculosis. Here, we present cryogenic-electron microscopy structures of MmpL4 and identify a mycobactin binding site, which is accessible from the cytosol and also required for bedaquiline efflux. An unusual coiled-coil domain predicted to extend 130 Å into the periplasm is essential for mycobactin and bedaquiline efflux by MmpL4 and MmpL5. The mycobacterial acyl carrier protein MbtL forms a complex with MmpL4, indicating that mycobactin synthesis and export are coupled. Thus, MmpL4 and MmpL5 constitute the core components of a unique multi-subunit machinery required for iron acquisition and drug efflux b
doi.org
March 11, 2025 at 1:10 AM
Shortened treatment benefits some with pre-extensively drug-resistant TB, but not all

A randomized trial finds that a 6-9 month regimen of bedaquiline, delaminid, linezolid, and clofazimine worked better in pre-XDR TB patients with limited disease.

www.cidrap.umn.edu/t...
July 17, 2025 at 8:52 PM
Excited to share our new paper, co-led by Gracyn Buenconsejo and me.

Why did a promising anti-#Cryptosporidium drug fail?

We asked whether the parasite itself might already be genetically prepared to escape treatment.
doi.org/10.1038/s415...
#Clofazimine #forwardgenetics
Genomic heterogeneity of NAD(P)H dehydrogenase predisposes Cryptosporidium to clofazimine resistance - Nature Microbiology
Forward and reverse genetics identifies the mode of action of clofazimine in the parasite Cryptosporidium. The genomic locus encoding the target is heterogeneous, and a resistance-conferring allele is...
doi.org
May 13, 2026 at 11:33 AM
Out Now! Genomic heterogeneity of NAD(P)H dehydrogenase predisposes Cryptosporidium to clofazimine resistance #MicroSky
Genomic heterogeneity of NAD(P)H dehydrogenase predisposes Cryptosporidium to clofazimine resistance
Nature Microbiology, Published online: 13 May 2026; doi:10.1038/s41564-026-02331-5Forward and reverse genetics identifies the mode of action of clofazimine in the parasite Cryptosporidium. The genomic locus encoding the target is heterogeneous, and a resistance-conferring allele is already widely distributed.
go.nature.com
May 14, 2026 at 9:38 AM
🧐”Bedaquiline, delamanid, linezolid, and clofazimine for rifampicin-resistant and fluoroquinolone-resistant tuberculosis (endTB-Q): an open-label, multicentre, stratified, non-inferiority, randomised, controlled, phase 3 trial”
#Tuberculosis
@cdmitpih.bsky.social
🔗⬇️
July 17, 2025 at 3:45 PM
Leprosy is fully curable using a combination of antibiotics called multidrug therapy (MDT), which typically includes dapsone, rifampicin, and clofazimine. This treatment is highly effective, stops the disease from spreading within days of starting, and is provided free of charge by the WHO
July 31, 2026 at 3:26 PM
#ResearchHighlight from Marlous Grijsen @oucru.bsky.social Indonesia

Fear of clofazimine-induced skin discoloration as a barrier to #leprosy treatment: urgent need for alternative therapeutic options

Read more 👉 ndm.ac/tropmed-res-hi
Full publication 👉 academic.oup.com/ced/advance-...
October 2, 2026 at 10:12 AM
New in JBC press: "Scientists' results show that clofazimine can be repurposed to treat cholera." #antibioticresistance
www.jbc.org/article/...
July 29, 2025 at 6:05 PM
New Research:

A 3-month clofazimine–rifapentine-containing regimen for drug-susceptible tuberculosis versus standard of care (Clo-Fast): a randomised, open-label, phase 2c clinical trial

www.thelancet.com/journals/lan...
A 3-month clofazimine–rifapentine-containing regimen for drug-susceptible tuberculosis versus standard of care (Clo-Fast): a randomised, open-label, phase 2c clinical trial
Although the trial was stopped early, we found that a 3-month regimen containing clofazimine and rifapentine had 12-week culture conversion rates that did not differ statistically from the standard of...
www.thelancet.com
September 8, 2025 at 6:47 AM
Forget the data on efficacy. Someone should do a study looking at physician psychosis induced by the process of trying to GET clofazimine.
September 9, 2025 at 5:30 PM
Identification of Novel Mutations Causing Clofazimine Resistance in Mycobacterium intracellulare https://www.biorxiv.org/content/10.1101/2025.04.09.647911v1
April 10, 2025 at 2:17 AM
Interesting article in #JAC on loading dose of #clofazimine in nontuberculous mycobacterial disease. A 4-week loading dose of 300 mg daily resulted in faster time to steady-state-like concentrations (3.8 vs 5.3 months) and was deemed safe and well-tolerated.

doi.org/10.1093/jac/... #IDSky #NTM
A loading dose of clofazimine to rapidly achieve steady-state-like concentrations in patients with nontuberculous mycobacterial disease
AbstractObjectives. Clofazimine is a promising drug for the treatment of nontuberculous mycobacterial (NTM) diseases. Accumulation of clofazimine to reach
doi.org
December 12, 2024 at 8:10 PM
Trial in NEJM: A 6-month regimen of bedaquiline, linezolid, delamanid & levofloxacin/clofazimine shows promise for rifampicin-resistant TB in South Africa for ages 6+. PMID:42341301, N Engl J Med 2026, @NEJM https://doi.org/10.1056/NEJMoa2503687 #Medsky #Pharmsky #RNA #ASHG #ESHG 🧪
https://doi.org/10.1056/NEJMoa2503687
No description available
doi.org
September 13, 2026 at 9:00 AM
#idboardreview Person w/ borderline leprosy was started on rifampicin, dapsone, clofazimine 4 wks ago, now w/F 102F, diffuse exfoliative rash, cheilits, subconjuctival hemorrhage, b/l ulnar claw hand deformity, ALT 540, AST 250, bil 3.8, Hb 9. dx? #idsky #idmeded #meded
March 18, 2026 at 1:27 AM
Phenazines should be capable of 1 electron transfer- it's part of the mechanism of action of the redox cycling phenazine clofazimine. @jnb-lab.bsky.social would likely know more about the actual chemistry of it! www.jbc.org/article/S002...
Reduction of Clofazimine by Mycobacterial Type 2 NADH:Quinone Oxidoreductase
The mechanism of action of clofazimine (CFZ), an antimycobacterial drug with a long history, is not well understood. The present study describes a redox cycling pathway that involves the enzymatic red...
www.jbc.org
February 19, 2025 at 6:24 AM