D-mannose contraceptives

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Carbohydrate doai

Reexamination Certificate

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C514S023000, C514S843000

Reexamination Certificate

active

06753319

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to the use of D-Mannose to inhibit or prevent the uniting of a sperm and egg in conception. The presence of excess mannose in a reproductive system inhibits sperm capacitation.
BACKGROUND OF THE INVENTION
The search for effective contraceptives that are both inexpensive and without undesired side effects has been a long standing activity. It has been noted that there is a D-Mannose binding constituent of human sperm surfaces. It has also been shown that D-Mannose is very useful in alleviation of the urinary tract, infection and cystitis. The present invention concerns the use of D-Mannose administration to a woman as a method of inhibiting conception.


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