Pharmaceutical dosage forms with impeded extractability of a...

Details Pharmaceutical dosage forms with impeded extractability of a... Pharmaceutical dosage forms with impeded extractability of a...

A - Human Necessities

61

K

A61K 9/20 (2006.01) A61K 47/02 (2006.01) A61K 47/38 (2006.01)

Patent

CA 2515626

A solid oral pharmaceutical dosage form of a sympathomimetic with impeded extractability of the sympathomimetic, comprising I) a sympathomimetic (component I) II) an excipient mixture (component II) composed of a) 5 to 50% by weight of hydroxyalkylcelluloses or alkylcelluloses or mixtures thereof b) 5 to 70% by weight of xanthan c) 5 to 50% by weight of an alkaline earth metal salt of a C10-C30 fatty acid d) 10 to 70% by weight of an alkali metal or alkaline earth metal salt of a mineral acid, of a sulfonic acid or of a C2-C6 carboxylic acid or mixtures thereof, where the total of components a) to d) is 100% by weight, where the ratio of active ingredient to excipient mixture II) is from 1:2 to 3:1 by weight.

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