2203338-A is referenced by 15 patents.

A bilaminated drug dosage form comprises at least 30 weight percent cellulose ether in first and a second laminae with each lamina comprising a different cellulose ether formulation, and a drug in at least one of the laminae.

Title
Laminated drug delivery systems
Application Number
GB19880007493 19880329
Publication Number
2203338B
Application Date
March 29, 1988
Publication Date
October 19, 1988
Inventor
Bhatti Gurdish Kaur
Magruder Judy A
Edgren David Emil
Assignee
Alza
IPC
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