6533b861fe1ef96bd12c57ff
RESEARCH PRODUCT
In Vitro Evaluation of Enteric-Coated HPMC Capsules—Effect of Formulation Factors on Product Performance
Jozef Al-gousousJohannes Andreas BlecharPeter LangguthMaoqi FuAndreas Sauersubject
AQOATcapsulesPharmaceutical Sciencelcsh:RS1-441formulationhypromellose phthalate (HPMCP)engineering.materialTalcBuffer (optical fiber)Articlelcsh:Pharmacy and materia medicachemistry.chemical_compoundCoatingTriethyl citratemedicineEudragit L100-55biopredictiveenteric-coatingchemistry.chemical_classificationChromatographydisintegrationChemistryPlasticizerCapsulePolymerEnteric coatinghypromellose acetate succinate (HPMCAS)engineeringmedicine.drugdescription
A comparative study on different enteric-coated hard capsules was performed. The influence of different formulation factors like choice of enteric polymer, triethyl citrate (TEC) concentration (plasticizer), talc concentrations (anti-tacking agent), and different coating process parameters on the sealing performance of the capsule and the disintegration time were investigated. Furthermore, the influence of different disintegration test methods (with disc vs. without disc and 50 mM U.S. Pharmacopoeia (USP) buffer pH 6.8 vs. biopredictive 15 mM phosphate buffer pH 6.5) was evaluated. All formulations showed sufficient but not equivalent acid resistance when tested. Polymer type was the main factor influencing the capsule sealing and disintegration time. In addition, TEC and talc could affect the performance of the formulation. Regarding the choice of the disintegration test method, the presence of a disc had for the most part only limited influence on the results. The choice of disintegration buffer was found to be important in identifying differences between the formulations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-07-01 | Pharmaceutics |