Bayer Aktiengesellschaft

Ulrich Schorsch

Paul Naab

Michael Preiss

Rudolf Zerbes

Bernhard Streuff

Arthur Haaf

Bernd Schade

Detlef Mathes

Known quinolone carboxylic acid derivatives of the formula ##STR1## are treated so as to become readily administrable parenterally, the treatment comprising dissolving the active compound using an acid, allowing the solution to stand for about 0.15 to 150 hours at a temperature from room temperature to the boiling point of the solution, filtering the solution, precipitating the active compound from the solution using a basic reagent, and converting the precipitated active compound into a form which can be administered parenterally.

Process for the preparation of quinolonecarboxylic acids which can be

The present invention relates to complexes of prostaglandins and crosspovidone, pre-pasted starch or dextrans, a process for the preparation of these complexes, their use in or as medicaments, and medicaments or pharmaceutical formulations containing complexes of prostaglandins or crosspovidone, pre-pasted starch or dextrans.

Complexes of prostaglandins

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Duesseldorf, Germany

Ulrich Schorsch