IMMERSION COATING COMPOSITIONS CONTAINING HIGH AMYLOSE STARCH Russian patent published in 2013 - IPC A61K47/36 A61K9/30 A61K9/56 A61J3/07 

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention characterises a method for preparing coated tablets by immersing a core containing an active substance into a liquid coating and drying the above coated core to form an outer coating layer on the core. The liquid coating contains at least one type of starch containing amylose making at least approximately 50 wt % of said starch. Preferentially, used starch represents pea starch. The liquid coating for the outer layer may additionally contain at least one type of natural gum and one plasticising agent. What is also described is a coated tablet prepared by the above method.

EFFECT: use of the high-amylose starch compositions containing at least 50 wt % of amylose for coating the tablets and capsules by immersion provides an average glance of approximately 325 that is specific for the gelatine-coated dosage forms, with no disadvantages and limitations specific for gelatine.

20 cl, 3 tbl, 11 ex