Application of factorial design in the premixing operation of diltiazem timed-release pellets
By: Kumaravelrajan, R
.
Contributor(s): Mohan Raj, V.
Publisher: Mumbai Indian Journal of Pharmaceutical Science 2022Edition: Vol.84(2), Mar-Apr.Description: 390-399p.Subject(s): PHARMACEUTICSOnline resources: Click here
In:
Indian journal of pharmaceutical sciencesSummary: The purpose of this study was to prepare diltiazem timed-release pellets using non pareil seeds. An
important step in the preparation of timed-release multiparticulate dosage forms was to mix a pilot mixture
composed of various polymers or waxes with different concentration. By using the three-factor and two-
level factorial design for the pilot mixing process, the mixing can be distinguished technically than the trial
and error method. Core, non pareil seeds prepared by using a sugar solution. A fluidized bed processor was
used to coat diltiazem on to the non pareil seeds. Hydroxypropyl methylcellulose E15 was used as coatings
for non pareil seeds, with various percentage (10 %, 20 % and 30 %) in two levels (16.66 % and 33.33 %).
According to the design matrix, pilot mixing was carried out for in vitro dissolution studies and optimized
batches were prepared for masterblend and mixture based on the results. The Pareto chart supported the
analysis of variance results for the model simplification and eliminating non-significant terms (p>0.05).
The optimal process variable selected for optimizing the diltiazem timed-release pellets formulation was
set to be pilot mix I=24.9 %, pilot mix II=16.6 % and pilot mix III=16.6 %. The optimized formula showed
that half-life period was 2.361±0.243 h and shelf-life period was 6.875 h.
| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
|---|---|---|---|---|---|---|
Articles Abstract Database
|
School of Architecture Archieval Section | Not for loan | 2022-2180 |
The purpose of this study was to prepare diltiazem timed-release pellets using non pareil seeds. An
important step in the preparation of timed-release multiparticulate dosage forms was to mix a pilot mixture
composed of various polymers or waxes with different concentration. By using the three-factor and two-
level factorial design for the pilot mixing process, the mixing can be distinguished technically than the trial
and error method. Core, non pareil seeds prepared by using a sugar solution. A fluidized bed processor was
used to coat diltiazem on to the non pareil seeds. Hydroxypropyl methylcellulose E15 was used as coatings
for non pareil seeds, with various percentage (10 %, 20 % and 30 %) in two levels (16.66 % and 33.33 %).
According to the design matrix, pilot mixing was carried out for in vitro dissolution studies and optimized
batches were prepared for masterblend and mixture based on the results. The Pareto chart supported the
analysis of variance results for the model simplification and eliminating non-significant terms (p>0.05).
The optimal process variable selected for optimizing the diltiazem timed-release pellets formulation was
set to be pilot mix I=24.9 %, pilot mix II=16.6 % and pilot mix III=16.6 %. The optimized formula showed
that half-life period was 2.361±0.243 h and shelf-life period was 6.875 h.
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