Processes for the preparation of delayed action and programmed release pharmaceutical forms and medicaments obtained thereby
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United States of America Patent
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-
Sep 24, 1991
Issued Date -
N/A
app pub date -
Nov 18, 1986
filing date -
Dec 7, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Specifically, the present invention relates to processes for preparing delayed action galenic forms. The process is characterized in that the application solutions of excipients, coatings and active constituents are adjusted to a desired pH. The independence of the rate of dissolution of a controlled release or sustained action oral pharmaceutical form is increased by admixing a pH adjusting agent with every application solution of medicament, excipeint or coating, throughout the course of formulation of the pharmaceutical form.
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