The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 1987
Filed:
Sep. 20, 1984
John F Blanco, West Chester, PA (US);
Igene Biotechnology, Inc., Columbia, MD (US);
Abstract
A solid pharmaceutical composition suitable for oral or rectal administration comprising a unit dosage of a pharmaceutically active ingredient (and optionally one or more inert fillers) homogeneously dispersed in a pharmaceutically acceptable binder, wherein at least a major portion (i.e., at least 50% by weight) of the binder is a microcrystalline solid phase prepared by raising the pH of a dairy whey lactose permeate having a pH below about 7 to a pH between about 8 and 10 to form (i) a lactose-rich aqueous solute phase capable of being autoclaved for 10-20 minutes at 121.degree. C. and 15 psi to form a clear, light-colored solute having a pH of about 7; and (ii) a microcrystalline solid phase which contains substantially all of the dissolved solids from said solute phase which would form a precipitate upon autoclaving said solid phase; separating the microcrystalline solid phase from the solute phase; and drying the separated microcrystalline solid phase to form a nontoxic, tasteless, odorless, chalky white free-flowing powder.