Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Ester doai
Patent
1997-05-23
1999-09-21
Krass, Frederick
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Ester doai
A61K 954, A61K 924, A61K 31275
Patent
active
059555009
ABSTRACT:
Pharmaceutical compositions containing non-racemic mixtures of verapamil are described, as well as a process of making pharmaceutical compositions containing unequal amounts of R- and S-verapamil.
A process for customizing a pharmaceutical composition containing R-verapamil and S-verapamil to optimize a selected pharmaceutical activity comprises selecting a pharmaceutical activity possessed by R-verapamil or S-verapamil, alone or in combination, and then determining a target plasma level for R-verapamil and S-verapamil to achieve that activity is also described. A dosage form for administering the drug is selected. Based on dosage form, one determines the relative amounts of R- and S-verapamil to incorporate into the dosage form to achieve the targeted plasma levels. The dosage form can then be formulated.
REFERENCES:
patent: 5457224 (1995-10-01), Ehrmann et al.
Overhead projection presented at Drug Information Workshop, Apr. 27-29, (1992), "Stereoselectivity of Thalidomide Toxicity in Mice".
Overhead projection presented at Drug Information Workshop Apr. 27-29, (1992), "Generic Applications of Chiral Products".
Presentation by Prof. Tucker, "D) Racemate Used --Isomer Preferable", Data unknown.
Final version, Investigation of Chiral Active Substances, European Commission, 1993.
Karim, A., Drug Information Association Workshop, "Should Plasma Levels of Enantiomers be Determined in Evaluating the Bioavailability of Chiral Drugs?", Apr. 27-29, 1992.
McMahon, G. et al., "The Importance of Chirality to Antihypertensive Drug Effects", Current Therapeutic Research, vol. 52, pp. 89-97, 1992.
Kwon, Y. and Triggle, D.J., "Chiral Aspects of Drug Action at Ion Channels: A Commentary on the Stereoselectivity of Drug Actions at Voltage-Gated Ion Channels With Particular Reference to Verapamil Actions at the Ca.sup.2+ Channel", Chirality, 3:393-404 (1991).
Wilson, K. and Walker, J., "Chirality and Its Importance in Drug Development", Biochemical Society Transactions, vol. 19, pp. 443-475, (1991).
Eleventh draft of guidance note from European Commission, CPMP Working Party on Quality of Medicinal Products, CPMP Working Party on Safety of Medicinal Products, CPMP Working Party on Efficacy of Medical Products, Investigation of Chiral Active Substances, Oct. 1992.
Fakhreddin Jamali
Longstreth James A.
G. D. Searle & Co.
Krass Frederick
LandOfFree
Pharmaceutical compositions containing non-racemic verapamil and does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pharmaceutical compositions containing non-racemic verapamil and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pharmaceutical compositions containing non-racemic verapamil and will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-80769