Desferrioxamine oral delivery system

Details Desferrioxamine oral delivery system Desferrioxamine oral delivery system

1993-12-16

1995-09-05

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Particulate form

424489, 424491, A61K 916

Patent

active

054477280

ABSTRACT:
Modified amino acids and methods for their preparation and use as oral delivery systems for pharmaceutical agents are described. The modified amino acids are preparable by reacting single amino acids or mixtures of two or more kinds of amino acids with an amino modifying agent such as benzene sulfonyl chloride, benzoyl chloride, and hippuryl chloride. The modified amino acids form encapsulating microspheres in the presence of the active agent under sphere-forming conditions. Alternatively, the modified amino acids may be used as a carrier by simply mixing the amino acids with the active agent. The modified amino acids are particularly useful in delivering peptides, e.g. insulin or calmodulin, or other agents which are sensitive to the denaturing conditions of the gastrointestinal tract.

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