Formulation of doxylamine and pyridoxine and/or metabolites or salts thereof
DCFirst Claim
1. A dual release oral dosage form comprising:
- (A) an immediate release composition comprising;
(a) from about 5 mg to about 20 mg of doxylamine and/or a pharmaceutically acceptable salt thereof; and
(b) from about 5 mg to about 20 mg of pyridoxine and/or a pharmaceutically acceptable salt thereof; and
(B) a delayed release composition comprising;
(a) from about 5 mg to about 20 mg of doxylamine and/or a pharmaceutically acceptable salt thereof; and
(b) from about 5 mg to about 20 mg of pyridoxine and/or a pharmaceutically acceptable salt thereof;
wherein said immediate release composition is for effecting release of (a) doxylamine and/or pharmaceutically acceptable salt thereof and (b) pyridoxine and/or pharmaceutically acceptable salt thereof, which begins prior to release of (a) doxylamine and/or pharmaceutically acceptable salt thereof and (b) pyridoxine and/or pharmaceutically acceptable salt thereof, from the delayed release component, within the gastrointestinal tract.
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Abstract
A dual release oral dosage system/dosage form comprising an immediate release component/composition and a delayed release component/composition is described. Each of the immediate release component/composition and delayed release component/composition comprises one or more of doxylamine, an analog thereof, a derivative thereof, a prodrug thereof, a metabolite thereof and/or a salt thereof, and one or more of pyridoxine, a salt thereof, a metabolite thereof and/or a salt of the metabolite. The dual release oral dosage system/dosage form exhibits an improved pharmacokinetic profile relative to the current Diclectin® formulation and is useful for example for the alleviation of the symptoms of nausea and vomiting, for example in the case of nausea and vomiting in pregnancy (NVP).
11 Citations
30 Claims
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1. A dual release oral dosage form comprising:
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(A) an immediate release composition comprising; (a) from about 5 mg to about 20 mg of doxylamine and/or a pharmaceutically acceptable salt thereof; and (b) from about 5 mg to about 20 mg of pyridoxine and/or a pharmaceutically acceptable salt thereof; and (B) a delayed release composition comprising; (a) from about 5 mg to about 20 mg of doxylamine and/or a pharmaceutically acceptable salt thereof; and (b) from about 5 mg to about 20 mg of pyridoxine and/or a pharmaceutically acceptable salt thereof; wherein said immediate release composition is for effecting release of (a) doxylamine and/or pharmaceutically acceptable salt thereof and (b) pyridoxine and/or pharmaceutically acceptable salt thereof, which begins prior to release of (a) doxylamine and/or pharmaceutically acceptable salt thereof and (b) pyridoxine and/or pharmaceutically acceptable salt thereof, from the delayed release component, within the gastrointestinal tract. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification