DOSAGE FORM COMPRISING A POLYMERIC MATRIX
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United States of America
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Issued Date -
Mar 24, 2022
app pub date -
Mar 5, 2020
filing date -
Mar 5, 2020
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Abstract
A dosage form contains a polymeric matrix, containing one or more polymer(s) and a biologically active ingredient. The polymeric matrix contains 10% by weight or more of the one or more polymer(s). The one or more polymer(s) are polymerized from a monomer mixture containing the monomers (a) 70 to 95% by weight of 2-ethylhexyl methacrylate (EHMA) and ethyl methacrylate (EMA), or 2-ethylhexyl methacrylate (EHMA) and methyl methacrylate (MMA); (b) 0 to 25% by weight of a C2 to C6 hydroxy-alkylester of acrylic acid or methacrylic acid; and (c) 2.5 to 20% by weight of a C2 to C8 alkyl ester of acrylic acid or of methacrylic acid with a quaternary cationic group in the alkyl group.
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