| abstract |
The invention relates to oral pharmaceutical compositions, produced with a suitable controlled-release formula, which contain propiverine, or one or mo re of its pharmaceutically acceptable salts in a quantity of between 4 and 60 m g propiverine and which exhibit an extended release of the active ingredient. Preferably, a mixture of active ingredient and optionally one or more acidic substances with a pka value of less than 6.65 is provided with a controlled- release coating or is embedded in a matrix and the latter is optionally coat ed with additional controlled-release layers. |