Abstract: The invention relates to novel multicomponent crystals, to the production thereof, and to the use thereof for treating pain conditions, in particular of unclear genesis, by means of a simultaneous effect on pains which are caused by muscle tension or degenerative joint diseases as well as on pains that are caused by inflammatory processes. The multicomponent crystals according to the invention contain ([2-amino-6-(4-fluoro-benzylamino)-pyridin-3-yl]-carbamic acid ethyl ester (flupirtine) and an arylpropionic acid as the sole active ingredient combination and can be produced by dissolving flupirtine and the arylpropionic acid in an inert organic solvent and subsequently crystallizing the multicomponent crystal.

Abstract: The invention relates to novel multicomponent crystals, to the production thereof, and to the use thereof for treating pain conditions, in particular of unclear genesis, by means of a simultaneous effect on pains which are caused by muscle tension or degenerative joint diseases as well as on pains that are based on inflammatory processes. The novel multicomponent crystals contain ([2-amino-6-(4-fluoro-benzylamino)-pyridin-3-yl]-carbamic acid ethyl ester (flupirtine) and 2-[2-[(2,6-dichlorphenyl)-amino]-phenyl]-acetic acid (diclofenac) as the sole active ingredient combination and can be produced by dissolving the two components in a molar ratio of 1.0:0.9 to 1.0:1.1 in an inert organic solvent and subsequently crystallizing the complex compound.

Abstract: The present invention relates to a flupirtine-containing lyophilisate, the use of this lyophilisate to produce a pharmaceutical composition to be parenterally applied, a procedure to produce a flupirtine-containing pharmaceutical composition to be parenterally applied, and a procedure to produce the flupirtine-containing lyophilisate as well as the flupirtine-containing pharmaceutical composition produced using the lyophilisate. For this purpose a lyophilisate is provided which contains the active ingredient flupirtine in the form of a physiologically tolerated salt, which has a solubility in water of at least 2.5 mg/ml, preferably at least 5 mg/ml, especially preferably at least 10 mg/ml, and contains one or more cyclodextrins or cyclodextrin derivatives, and which may be used to produce a pharmaceutical composition to be parenterally applied.

Abstract: The preparation of flupirtine carboxylate acid addition salts having the following formula (2), wherein R represents hydrogen or a C1-C6 alkyl group, with the proviso that RCOOH is neither maleic acid nor gluconic acid, is described.

Abstract: Flupirtine acid addition salts having the following formula (2), wherein R represents a substituted or unsubstituted C1-C12-alkyl or a substituted or unsubstituted C6-C10-aryl group, have been prepared.

Abstract: The preparation of flupirtine carboxylate acid addition salts having the following formula (2), wherein R represents hydrogen or a C1-C6 alkyl group, with the proviso that RCOOH is neither maleic acid nor gluconic acid, is described.

Abstract: A lyophilisate having as an active ingredient flupirtine in base form or as a physiologically tolerated salt is suitable for producing a pharmaceutical composition for parenteral administration. The physiologically tolerated salt is an acid addition salt of flupirtine. The lyophilisate contains at least one additive selected from the group consisting of a cake-forming agent, an antioxidant, and a detergent. In a process for producing a flupirtine-containing pharmaceutical composition for parenteral administration, a flupirtine-containing lyophilisate is dissolved in at least one solvent that is an aqueous medium or an organic solvent or a combination thereof to obtain a liquid pharmaceutical composition ready for use. In a process for producing a flupirtine-containing lyophilisate, a flupirtine solution is prepared by dissolving flupirtine base in an aqueous medium and the flupirtine solution is freeze dried.

Abstract: The invention relates to a process of making an oral pharmaceutical formulation with variably adjustable release rate, which comprises one or more active ingredients, and one or more sucrose ester of a fatty acid as the sole release-controlling agent for said active ingredient wherein when the dosage form is a granule or a pellet. The formulation is made by melting the oral formulation and granulating or pelletizing the melt.