Warner-lambert Company

Heinrich P Scheurer

Pauline H Pan

Betty P Wen

Frank A Volpe

Michael P Ramsay

Atma Chaudhari

Adrian G McNamee

Val Dokuzovic

Vincent Lam

Kenneth K Ong

The present invention relates generally to a mixture of coated and non-coated sulfonic acid cation exchange resins (Amberlite IR69) cross-linked with about 8% divinyl benzene onto which dextromethorphan has been loaded. About 30% of the drug/resin complexes are coated with a mixture of ethyl cellulose or ethyl cellulose latexes with plasticizers and water dispersible polymers such as SURELEASE. The coating level is about 50% w/w drug. Coated and uncoated drug/resin complexes are loaded with drug to about 45% by weight drug/resin complex. The ratio of coated and uncoated drug/resin complexes is about 55/45. The particle sizes of the coated and uncoated drug/resin complexes is about 20 to about 300 and about 20 to about 250 microns, respectively.

Antitussive drugs delivered by ion exchange resins

A pleasant-tasting, substantially alcohol-free oral mouthwash composition is effective in eliminating the bacteria and other oral microflora responsible for the production of plaque, periodontitis, gingivitis, gum disease and bad breath. The composition consists of a unique blend of the essential oils thymol or eucalyptol, methyl salicylate, menthol and tripartite blend of peppermint flavor oils that are dissolved in solution using a non-ionic surfactant blend.

Alcohol free mouthwash

A non-gritty chewable calcium tablet comprising a granulation having a bulk density of about 0.3 g/ml to about 1.5 g/ml, said granulation comprising micronized calcium citrate, a sweetener and a lubricant. The calcium particle size is in the range of about 0.1 micronmeters to about 10 micronmeters.

Chewable, non-gritty calcium citrate tablet

Benzene is removed from carboxy polymethylene resin by dissolving the resin to form a solution and dispersing the solution as fine droplets in a gas phase or aerating the solution to introducing into it a fine dispersion of gas bubbles. The benzene transfer from the solvated resin to the gas phase and a benzene-free resin or solution can be obtained which may be usable in pharmaceutical and food products.

Growing community of inventors

Scarborough, Canada

Heinrich P Scheurer