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Updated: May 13, 2025

Formation of Dispersible Taohong Siwu Tablets
Published on: February 3, 2023
Children's preferences among six novel moxifloxacin and linezolid-dispersible tablet formulations
G Hoddinott1,2, H R Draper1, N Vanqa1
1Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
Insights
Children preferred novel moxifloxacin (MFX) formulations over existing ones, though palatability needs improvement. Linezolid (LZD) formulations showed no clear preference, indicating a need for better pediatric TB drug development.
Area of Science:
- Pediatric Pharmacology
- Drug Formulation Science
- Taste Perception Studies
Background:
- Moxifloxacin (MFX) and linezolid (LZD) are crucial for treating multidrug-resistant tuberculosis (TB).
- Current dispersible tablet formulations of MFX and LZD exhibit poor palatability in pediatric populations.
- There is a critical need for child-friendly TB medication formulations.
Purpose of the Study:
- To evaluate children's palatability preferences for novel, child-friendly formulations of moxifloxacin and linezolid.
- To compare the acceptability of different flavor blends from two generic manufacturers.
- To inform the development of improved pediatric tuberculosis treatment options.
Main Methods:
- A randomized, cross-sectional 'swish-and-spit' taste panel study was conducted with 97 children for MFX and 96 for LZD.
- Participants (aged 5-17) ranked preferences and rated acceptability of three flavor variants per drug from two manufacturers.
- Data were analyzed using comparative statistics, including the Friedman test, stratified by age, sex, and ethnic group.
Main Results:
- Children significantly preferred novel moxifloxacin (MFX) blends over existing ones (P < 0.001 for both manufacturers).
- Despite preference, the most accepted MFX blend still had sub-optimal palatability.
- No clear preference emerged for either manufacturer's linezolid (LZD) blends; results were consistent across demographic groups.
Conclusions:
- Children's input is valuable for assessing palatability of pediatric TB drug formulations.
- Novel MFX formulation blends show promise and are recommended for further development.
- Overall palatability for both MFX and LZD formulations requires further optimization for pediatric use.
Background:
Moxifloxacin (MFX) and linezolid (LZD) are key components of rifampicin-resistant TB treatment regimens. Currently, available dispersible tablet formulations of both drugs have poor palatability in children. We evaluated children's preferences for more child-friendly formulations from two generic manufacturers.
Methods:
This was a randomised, cross-sectional 'swish-and-spit' taste panel study at two sites in South Africa. Each manufacturer created three flavour-blend variants for each drug. Healthy child volunteers 5-17 years old were sampled stratified by age, sex, and ethnic group and completed a preference rank-ordering and five acceptability 5-point Likert scales. We explored the blends' acceptability using summary, comparative, and ranking statistics.
Results:
Ninety-seven and 96 children contributed data for the MFX and LZD drug blends, respectively. For both manufacturers' MFX blends, the Friedman test showed children had a statistically significant preference for novel options over the Existing blend (Q(2) = 24,937; P < 0.001, and Q(2) = 21.213; P < 0.001, respectively). Even the most preferred MFX blend had sub-optimal acceptability, especially for one manufacturer. Children did not have a clear preference for both manufacturers' LZD blends. These findings were not influenced by age, sex, or ethnic group.
Conclusion:
Children across a broad age spectrum can provide meaningful input on the palatability preferences of TB drug formulations. Novel MFX formulation blends were recommended for development, but acceptability remains suboptimal.
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