Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Nitrogen containing other than solely as a nitrogen in an...
Reexamination Certificate
2005-08-30
2005-08-30
O'Sullivan, Peter G. (Department: 1621)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Nitrogen containing other than solely as a nitrogen in an...
C564S233000, C564S234000, C564S235000, C422S028000, C429S078000
Reexamination Certificate
active
06936640
ABSTRACT:
Biguanide/quaternary ammonium compounds and the use of same as antimicrobial agents in pharmaceutical compositions are described. The biguanide/quaternary ammonium compounds are useful in the preservation of pharmaceutical compositions, particularly ophthalmic pharmaceutical compositions and compositions for treating contact lenses. The compounds are especially useful for disinfecting contact lenses.
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McQueen Nathaniel D.
Park Joonsup
Alcon Inc.
Brown Gregg C.
O'Sullivan Peter G.
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