RT Journal Article T1 Development of a Solid Formulation Containing a Microemulsion of a Novel Artemisia Extract with Nematocidal Activity for Oral Administration A1 Perez-Roman, Inés A1 Kiekens, Filip A1 Córdoba Díaz, Damián A1 García Rodríguez, Juan José A1 Córdoba Díaz, Manuel AB Background: Intestinal nematode infections are usually treated with benzimidazole drugs,but the emergence of resistance to these drugs has led to an increasing demand of new anthelminticstrategies. A new microemulsion formulation (ME) consisting of an Artemisia absinthium extractwith proven nematocidal efficacy was previously developed. The aim of our study is to implementa D-optimal mixture design methodology to increase the amount of a silica material (loaded withthis ME) in a tablet formulation, considering its tensile strength and disintegration time. Methods:16 experiments or combinations of the 6 tablet components (loaded silica, microcrystalline cellulose,polyvinylpyrrolidone, croscarmellose, Syloid® 244 FP and magnesium stearate) were assessed. Tensilestrength and disintegration time models were developed, and an optimization process was carriedout. Results: Tensile strength was improved by increasing the polyvinylpyrrolidone content, whilecroscarmellose decreased the disintegration time. The optimized powder mixture contains 49.7% w/wof the loaded silica material. A compression force of 12 kN was applied to the powder mixture to formtablets with a tensile strength of 2.0 MPa and a disintegration time of 3.8 min. Conclusions: Our resultsshow that D-optimal mixture designs provide a promising approach to formulate liquid-loadedsilica materials. PB MDPI YR 2020 FD 2020-09-14 LK https://hdl.handle.net/20.500.14352/115514 UL https://hdl.handle.net/20.500.14352/115514 LA eng NO Perez-Roman I, Kiekens F, Cordoba-Diaz D, Garcia-Rodriguez JJ, Cordoba-Diaz M. Development of a Solid Formulation Containing a Microemulsion of a Novel Artemisia Extract with Nematocidal Activity for Oral Administration. Pharmaceutics. 2020 Sep 14;12(9):873. DS Docta Complutense RD 29 abr 2025