Abstract: The invention is directed to a composition and a method for preparing the same which composition inhibits or destroys unicellular living organisms. The composition is effective as a spermicide and also in combating sexually transmitted diseases and as an antiseptic agent. The composition of the invention comprises lithium and ionic or ionizable fluorine, for example, lithium fluoride. A suitable excipient such as KATHON may also be present. The invention may, for example, comprise lithium fluoride and a spermicidal agent, such as a quaternary ammonium compound, for example, benzalkonium chloride.

Abstract: The inventive composition comprises an active ingredient, for example a quaternary ammonium compound, which active ingredient is capable of inhibiting or destroying a unicellular living organism, such as spermatazoa, bacteria or virus. The active ingredient is combined in a synergistic amount with an activating ingredient capable of inhibiting or destroying the enzymes associated with the unicellular organism. The activating ingredient may be capable of releasing fluoride ions, for example, an inorganic fluoride compound. The composition according to the invention is useful, for example, as a spermicide, or as an antibiotic, or as an anti-STD preparation for local or topical application.