Abstract: Any pharmaceutical preparation for oral administration with controlled release of active ingredient in the small bowel, on the basis of active ingredient carriers provided with at least one active ingredient which are provided with an inner layer to control the release of active ingredient and with a gastro-resistant coating layer disposed thereon, which is characterized in that the inner layer is formed from at least two diffusion layers whose permeability for the diffusing active ingredient decreases from the inside to the outside, and a method for the production thereof, are described.
Abstract: A process for the production of endotropine by catalytically reducing tropanone with hydrogen with Raney nickel or Raney copper. This process is conducted with tropanone in an aqueous solution absent of organic solvents, in a closed system, at atmospheric pressure and ambient temperature and subject to turbulent action at 1000 to 1500 r.p.m. The process leads to average yields of 94%. The process improves on prior art processes which use an overpressure and organic solvents which involve a high fire and explosion risk.
Abstract: Compositions of the anticholinergic agent trospium chloride suitable for localized administration are provided, in the form of an aqueous solution having a pH-value of.gtoreq.4.5, that is prepared prior to administration. Methods of using the provided compositions for treating dysfunctions of the bladder and the urinary system are also provided.
Type:
Grant
Filed:
November 17, 1997
Date of Patent:
December 7, 1999
Assignee:
Dr. R. Pfleger Chemische Fabrik GmbH
Inventors:
Ulrich Schwantes, Albert Schaupp, Manfred Stohrer
Abstract: The present invention relates to a medicament with an analgesic, antipyretic and/or antiphlogistic action based on a salicylic acid derivative. The prior art has constantly sought alternatives for active components such as acetyl salicylic acid (ASS) and ethenzamide in order to prevent incompatibility, or provide simpler and better, rapidly acting substances in the most varied administration forms. The invention has surprisingly proved that ethenzamide is very rapidly and completely metabolized in the human body to 2-ethoxybenzoic acid. Ethenzamide is only a pro-drug. A metabolization to salicylamide was exluded. It was also possible to prove the analgesic action of 2-ethoxybenzoic acid. It is correlated with the serum levels and is maintained for longer than 8 hours. 2-ethoxybenzoic acid is very rapidly resorbed. The serum maxima were reached after only 30 minutes and 2-ethoxybenzoic acid can still be detected in the serum after 24 hours.
Type:
Grant
Filed:
March 10, 1992
Date of Patent:
May 30, 1995
Assignee:
R. Pfleger Chemische Fabrik GmbH
Inventors:
Heinz Bertholdt, Dieter Michalczyk, Rudolf Hartl, Herbert Lieb
Abstract: The invention relates to a liquid, bismuth containing medicinal product for the oral treatment of gastro-intestinal illnesses such as gastritis, ulcers, etc., caused by campylobacter.The invention provides a closed system, e.g. a single dose container or a multiple dose container with dosing device containing one or more portions of the bismuth containing medicinal product. In addition, a simple, inexpensive production process is proposed, in which the bismuth citrate is suspended in water, slightly heated and, accompanied by the addition of caustic potash solution/aqueous ammonia solution, is dissolved and set to a pH-value between 6.0 and 7.0 Subsequently an aqueous tripotassium citrate-citric acid solution is added and if necessary sterilized. The solution obtained is placed in a multidose container with dosing device, or is initially diluted with water to form a ready to drink solution, portioned into single dose containers and optionally sterilized.