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:
Jul. 01, 2003
Filed:
Sep. 24, 2002
Danny Yu, Somervile, NJ (US);
Edward Roche, Paoli, PA (US);
Ortho-McNeil Pharmaceutical, Inc., Raritan, NJ (US);
Abstract
A liquid composition for oral administration comprising a pharmaceutically active medicament coated with a taste masking effective amount of a polymer blend of (a) dimethylaminoethyl methacrylate and neutral methacrylic acid ester (MM/MAE) and (b) a cellulose ester, in an aqueous vehicle, wherein the polymer weight ratio of the cellulose ester to the MM/MAE is about 40:60 to about 90:10, preferably about 60:40. The liquid composition utilizes a “reverse enteric coating” which is soluble in the acid pH's of the stomach, generally about 1.0 to 4.0, but relatively insoluble at the non-acidic pH's of the mouth. The coatings provide for rapid release and absorption of the drug, which is generally desirable in the case of liquid dosage forms.