Compressed tablets for disintegration in the colon comprising an active ingredient containing nucleus coated with a first layer containing microcrystalline cellulose which is coated with an enteric organic polymer coating
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United States of America Patent
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-
Feb 21, 1984
Issued Date -
N/A
app pub date -
Aug 31, 1982
filing date -
Dec 10, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Coated compressed tablets for oral administration are disclosed which substantially desintegrate specifically at the level of the colon. The tablets comprise a compressed center piece containing an active agent which center piece is coated by a first coating layer which is comprised of a mixture of a pharmaceutically acceptable film-forming organic polymer material which is non-deteriorated by a neutral or alkaline aqueous medium and microcrystalline cellulose and a second coating layer which is comprised of a pharmaceutically acceptable enteric organic polymer coating material.
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