Contraceptive suppository

Details Contraceptive suppository Contraceptive suppository

1979-01-02

1980-02-05

Rose, Shep K.

Drug, bio-affecting and body treating compositions

Effervescent or pressurized fluid containing

Gas produced in situ by chemical reaction

424 78, 424361, 128271, 424DIG14, A61K 902, A61K 946

Patent

active

041872860

ABSTRACT:
A suppository especially adapted for vaginal insertion to act as a contraceptive which comprises a mixture of polyethylene glycol, a spermicidally-active ingredient, a thickening agent, an effervescent agent and alginic acid, the action of the alginic acid reacting with the effervescent agent in moist conditions to form carbon dioxide and also forming a viscous barrier adherent to the vaginal walls to prevent penetration of the sperm.

REFERENCES:
patent: Re29102 (1977-01-01), Schorm
patent: 1878766 (1932-09-01), Fitzgerald
patent: 2191139 (1940-02-01), Bibbins
patent: 2584166 (1952-02-01), Stevenson et al.
patent: 2623839 (1953-12-01), Taub
patent: 2623840 (1952-12-01), Taub
patent: 2623841 (1952-12-01), Taub
patent: 2854377 (1958-09-01), Elias
patent: 3062715 (1962-11-01), Reese
patent: 3121663 (1964-02-01), Parker
patent: 3234091 (1966-02-01), Lang et al.
Becker American Prof. Pharmacist 20(10):939-944,987, Oct. 1954, "Thickening Agents Used in Pharmacy".

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