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Aqueous creatine solution and process of producing a stable, bioavailable aqueous creatine solution

Patent 5973005 Issued on October 26, 1999. Estimated Expiration Date: Icon_subject February 26, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Method for restoring functionality in muscle tissue
Patent #: 5091404
Issued on: 02/25/1992
Inventor: Elgebaly

Creatine beverage and producing process thereof
Patent #: 5612375
Issued on: 03/18/1997
Inventor: Sueoka

Method for reduction of serum blood lipids or lipoprotein fraction
Patent #: 5627172
Issued on: 05/06/1997
Inventor: Almada, et al.

Amine acid salt compounds and process for the production thereof Patent #: 5686588
Issued on: 11/11/1997
Inventor: Yoo

Inventors

Assignee

Application

No. 031290 filed on 02/26/1998

US Classes:

514/565, N-N or N=C(-N)-N containing (e.g., hydrazines, hydrazones, or quanidines, etc.)562/560Ureido, hydrazino, or nitrogen double bonded directly to carbon

Examiners

Primary: Reamer, James H.

Attorney, Agent or Firm

Foreign Patent References

  • 9402127 WO 02/13/1994

International Class

A61K 031/195

Abstract

A stable aqueous solution of creatine acid sulfate provides a source of creatine to an animal when taken orally. The aqueous solution of creatine acid sulfate (after neutralization and buffering) has a pH of about 7.2 to about 7.8 and is stable for at least six months at room temperature. The creatine acid sulfate is produced by adding creatine monohydrate to a sulfuric acid solution in a stoichiometric amount to result in creatine acid sulfate having a pH initially of 2.0-3.0. The resulting creatine acid sulfate is diluted with water and neutralized to raise the pH and avoid the formation of creatinine. The resulting creatine acid sulfate solution preferably contains a buffering and neutralizing agent such as tribasic potassium phosphate which forms mono- and dibasic potassium phosphates by interaction with the hydrogen ions liberated from the acid sulfate. The aqueous solution can be combined with a sweetener, electrolyte and carbohydrate source to produce a stable drink for providing a source of creatine to an animal in need thereof. An effective amount of glycerol is preferably added to enhance absorption of the creatine through the intestinal wall into the bloodstream and eventually to the needy skeletal muscles.

Other References

  • Martindale, The Extra Pharmacopoeia, The Pharmaceutical Press 1982, Anhydrous Sodium Phosphate/Proprietary Preparations of Some Other Electrolyte Solutions, p. 643
  • Creatine Phosphate Research Underway, http://ussa-sport.ussa.edu/pubs/creatin.num, Feb. 5, 1997
  • Edgar et al., The Equilibrium Between Creatine and Creatinine, in Aqueous Solution. The Effect of Hydrogen Ion, J. Am. Chem. Soc., vol. 47, pp. 1179-1188, Apr. 4, 1925
  • Dhar et al, Chem. Abstracts, vol. 56, #9702h, 1961
  • Dhar et al, Chem. Abstracts, vol. 56, #9703a, 196
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