Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert
Patent
1991-12-23
1993-10-26
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Implant or insert
424 7804, 424429, 514642, 514912, A61K 3114, A61K 3174
Patent
active
052564207
ABSTRACT:
A method of imparting antimicrobial activity to an ophthalmic composition includes the step of adding a polyquaternary ammonium salt to the composition. The method may be employed, for example, for disinfecting a contact lens or preserving a solution, ointment or suspension.
REFERENCES:
patent: 4407791 (1983-10-01), Stark
patent: 4525346 (1985-06-01), Stark
Littlefield Susan A.
Nicolson Paul C.
Tsao Fu-Pao
Ciba-Geigy Corporation
Hervey William G.
McC. Roberts Edward
Page Thurman K.
Spear James M.
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