Boehringer Ingelheim Gmbh

Dr. Karl Thomae Gmbh

Gerhard Bozler

Peter Gruber

Rolf Stefan Brickl

Herbert Stricker

Dietrich Arndts

Bernhard Freund

Wolf D Bechtel

Siegfried Darda

Karl L Rominger

Heribert Harwalik

Volkmar Haselbarth

Gottfried Schepky

This invention relates to a pharmaceutical dosage unit composition consisting essentially of a gelatin capsule containing (1) a disintegrating core comprising clonidine, said disintegrating core having a readily water-soluble coating, and (2) a plurality of non-disintegrating cores comprising clonidine, said non-disintegrating cores having a coating consisting of from 20 to 90 percent by weight of a water-insoluble film former and from 10 to 80 percent by weight of a water-soluble polymer, the diameter of each of the disintegrating and non-disintegrating cores being at least about 5 mm.

Retard form of pharmaceuticals with insoluble porous diffusion coatings

A pharmaceutical dosage unit retard form having a constant, pH-independent release rate of active ingredient, consisting of a core comprising an active ingredient, and a semi-permeable diffusion coating over the core, where the coating consists of a water-insoluble film-former, a water-soluble polymer and eventually an acid-insoluble polymer incorporated therein.

This invention relates to vehicles for the administration of dipyridamole. More specifically, this invention relates to a method of treating cardiovascular disorders in a host in need of such treatment which comprises administering to said host a cardiovascularly effective amount of a composition comprised of (i) dipyridamole or an acid addition salt thereof and (ii) at least one pharmacologically acceptable acid or acid substance, the total amount of acid from acid addition salt present and acid or acid substance being in a ratio of at least about 5 acid equivalents to 1 mol of dipyridamole, preferably in the form of particles having particle sizes of from about 0.1 to 2.0 mm.

Dipyridamole-containing pharmaceutical form

This invention relates to a composition for the sustained release of dipyridamole which comprises (i) spheroid particles comprised of dipyridamole or crystallized salts thereof and pharmacologically acceptable acid or acid substance, and (ii) a coating surrounding said spheroid particles, said coating being comprised of from about 50 to 100 percent by weight of acid-insoluble lacquers soluble in intestinal juices and from about 0 to 50 percent by weight of lacquers insoluble in gastric and intestinal juices and said coating being present in an amount of from about 3 to 30 percent by weight, based on the weight of the spheroid particles, and to the preparation of such a composition.

Dipyricamole sustained release forms comprising lacquer-coated particles

A pharmaceutical dosage unit retard form having a constant, pH-independent release rate of active ingredient, consisting of a core comprising an active ingredient, and a semi-permeable diffusion coating over the core, were the coating consists of a water-insoluble film-former, a water-soluble polymer and eventually an acid-insoluble polymer incorporated therein.

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Biberach, Germany

Gerhard Bozler