Flowable drug precursor products ready for pressing for tablets, pellets and sugar-coated tablets and processes for preparing the same
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United States of America Patent
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Sep 12, 2000
Grant Date -
N/A
app pub date -
Dec 23, 1998
filing date -
Dec 15, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a process for making a flowable drug precursor product ready for pressing comprising humidifying dried plant drug material in a vacuum drying device together with the desired additives, carriers and/or excipients, which device comprises a multi-blade stirrer having its own drive and extending through a cylindrical mixing and drying chamber, said device optionally being provided with a filter, a back-purge means, a solvent condenser with an after-cooler and a collection vessel, a back-condenser and/or a process, control and regulation unit, and drying the humid mixture at a jacket temperature of the device of 20 to 50.degree. C., a product temperature between 20 and 45.degree. C. and a pressure of 20 to 500 mbar to obtain the precursor product, and also relates to said precursor products as such.
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