U.S. patents available from 1976 to present.
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Enkephalinase and endorphinase inhibitors as anti-craving compositions

Patent 4761429 Issued on August 2, 1988. Estimated Expiration Date: Icon_subject August 2, 2005. 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

Class of analgesics and/or anti-inflammatory agents consisting of inhibitors of breakdown of endogenous enkephalin and/or endorphin, and combinations of said analgesics with antipyretic, anti-inflammatory (aspirin-type) drugs Patent #: 4439452
Issued on: 03/27/1984
Inventor: Ehrenpreis ,   et al.

Inventors

Application

No. 06/757733 filed on 07/22/1985

US Classes:

514/561Nitrogen other than as nitro or nitroso nonionically bonded

Examiners

Primary: Friedman, Stanley J.

Attorney, Agent or Firm

International Classes

A61K 31/19 (20060101)
A61K 31/185 (20060101)
A61K 31/195 (20060101)

Abstract

A new class of anti-craving compositions is provided by substances which inhibit breakdown of endogenous substances such as enkephalins and/or endorphins. An anti-alcohol craving effect is observed with an enkephalin breakdown inhibitor. Specifically, D-phenylalanine, DL-phenylalanine, D-leucine, DL-leucine, and hydrocinnamic acid, each an encephalin breakdown inhibitor, significantly lowered alcohol intake in animals and humans. The anti-alcohol desire effect is observed in animals genetically prone to choose alcohol over water solutions.

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