Oral suspensions of morphine hydrochloride for controlled release: rheological properties and drug release.

Abstract:

:Recent developments in pharmaceutical technology have facilitated the design and production of modified release formulas for drugs whose physical, chemical or biological properties impede release and thus might compromise their efficacy or safety. One such drug is morphine, whose short half-life requires repeated doses at short intervals. The use of biocompatible polymers such as ethylcellulose has made it possible to develop microencapsulated formulations which facilitate liquid, sustained-release pharmaceutical formulas for oral administration. We developed a stable final formulation of morphine with an acceptable release profile by comparing the rheological properties and stability of formulations with different thickeners (xanthan gum, Carbopol, and carboxymethylcellulose with microcrystalline cellulose) at different concentrations from 0.25% to 1.0%. Release assays in a Franz-type cell were done to determine the most suitable release profile for the formulation.

journal_name

Mol Pharm

journal_title

Molecular pharmaceutics

authors

Morales ME,López G,Gallardo V,Ruiz MA

doi

10.1021/mp200019q

subject

Has Abstract

pub_date

2011-04-04 00:00:00

pages

629-34

issue

2

eissn

1543-8384

issn

1543-8392

journal_volume

8

pub_type

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