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Dissolution profile study on the novel doxycycline hydrochloride sustained-release capsules
1College of Bioengineering, Henan University of Technology, Zhengzhou, PR China.
Pakistan Journal of Pharmaceutical Sciences
|September 29, 2014
Summary
A new sustained-release capsule for doxycycline hydrochloride (DC) was developed using extrusion-spheronization. This novel formulation demonstrated comparable in vitro release profiles to existing products, offering a promising alternative dosage form.
Area of Science:
- Pharmaceutical Technology
- Drug Delivery Systems
Background:
- Doxycycline hydrochloride (DC) is an antibiotic used to treat various infections.
- Developing sustained-release formulations can improve patient compliance and therapeutic efficacy.
- Novel manufacturing technologies are crucial for creating advanced drug delivery systems.
Purpose of the Study:
- To prepare a novel sustained-release capsule of doxycycline hydrochloride (DC) using extrusion-spheronization.
- To evaluate the in vitro release characteristics of the developed DC sustained-release capsule.
- To compare the release profile of the developed formulation with a marketed sample.
Main Methods:
- Preparation of doxycycline hydrochloride (DC) sustained-release capsules utilizing the extrusion-spheronization method.
- In vitro drug release studies conducted using a marketed sample as a reference.
- Analysis of release data based on cumulative release amounts over time.
- Evaluation of similarity factors (f2) to compare release profiles.
Main Results:
- The developed DC sustained-release capsule exhibited in vitro release characteristics similar to the reference preparation.
- High batch-to-batch consistency was observed in the release profiles.
- Over 90% of DC was released from the sustained-release capsule within 4 hours.
- Similarity factors (f2) were consistently above 50, indicating comparable release.
- The drug release mechanism followed non-Fickian diffusion principles.
Conclusions:
- The novel extrusion-spheronization method successfully produced a doxycycline hydrochloride (DC) sustained-release capsule.
- The developed formulation shows comparable in vitro drug release to a marketed product.
- This sustained-release preparation represents a promising alternative dosage form for treating relevant diseases.
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