Rectally absorbable form of L-dopa
First Claim
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1. A method of enhancing the rate of absorption of a rectally administered composition comprising rectally administering to a patient a therapeutically effective dosage amount of an ester of L-dopa having the structural formula:
- ##STR2## wherein R is alkyl(C1 -C20), aryl(C6 -C9), unsubstituted aralkyl(C7 -C20) or pharmaceutically acceptable organic or inorganic counterion salts and pharmaceutically acceptable excipients.
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Abstract
The invention relates to compositions and methods of enhancing rectal absorption of L-dopa via the formation of an ester prodrug and optionally with a decarboxylase inhibitor.
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21 Claims
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1. A method of enhancing the rate of absorption of a rectally administered composition comprising rectally administering to a patient a therapeutically effective dosage amount of an ester of L-dopa having the structural formula:
- ##STR2## wherein R is alkyl(C1 -C20), aryl(C6 -C9), unsubstituted aralkyl(C7 -C20) or pharmaceutically acceptable organic or inorganic counterion salts and pharmaceutically acceptable excipients.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15)
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12. A pharmaceutical composition for enhancing rectal absorption of L-dopa by administering a formulation comprising a therapeutically effective dosage amount of an ester of L-dopa of the structural formula:
- ##STR3## wherein R is alkyl(C1 -C20), aryl(C6 -C9), unsubstituted aralkyl(C7 -C20) or pharmaceutically acceptable organic or inorganic counterion salts and suppository base or microenema excipients.
- View Dependent Claims (16, 17, 18, 19, 20, 21)
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