Compositions and methods for increasing the metabolic lifetime of dextromethorphan and related pharmacodynamic effects
AssigneeAntecip Bioventures II LLC
InventorHerriot Tabuteau
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Abstract
This disclosure relates to methods administering various compounds in conjunction with dextromethorphan to a human being. Dosage forms, drug delivery systems, and methods related to dextromethorphan or dextrorphan and bupropion, hydroxybupropion, erythrohydroxybupropion, threohydroxybupropion, or a metabolite or prodrug of any of these compounds are also disclosed.
Claims30
A method of increasing metabolic lifetime of dextromethorphan, comprising co-administering to a human being a combination of:
- a. a bupropion;
- with
- b. a dextromethorphan;
- wherein the human subject is an extensive metabolizer of dextromethorphan;
- wherein a dosage form comprising the bupropion and the dextromethorphan is administered once a day for one to eight consecutive days and twice a day thereafter for at least consecutive 30 days;
- wherein the dosage form comprises from about 50 mg to about 130 mg of the bupropion;
- and
- wherein, on the tenth day the dosage form is administered, the plasma trough level of the dextromethorphan is increased at least 15-fold over the plasma trough level of the dextromethorphan achieved by administering the same amount of the dextromethorphan without the bupropion.
A method of increasing metabolic lifetime of dextromethorphan, comprising co-administering to a human being a combination of:
- a. a bupropion;
- with
- b. at least about 42 mg of a dextromethorphan;
- wherein the human subject is an extensive metabolizer of the dextromethorphan;
- wherein a dosage form comprising the bupropion and the dextromethorphan is administered once a day for one to eight consecutive days and twice a day thereafter for at least consecutive 30 days;
- wherein, on the tenth day the dosage form is administered, the plasma trough level of the dextromethorphan is increased at least 15-fold over the plasma trough level of the dextromethorphan achieved by administering the same amount of the dextromethorphan without the bupropion.
Dependencies are inferred from the claim text.