Methods and composition for preserving media in the tip of a sol

Details Methods and composition for preserving media in the tip of a sol Methods and composition for preserving media in the tip of a sol

1996-03-29

1999-01-26

Fay, Zohreh

Drug, bio-affecting and body treating compositions

Inorganic active ingredient containing

Peroxide or compositions of or releasing gaseous oxygen or...

424613, 514397, 514912, A61K 3340

Patent

active

058635629

ABSTRACT:
A container, composition and method for preserving treatment solutions, in which the composition includes weak and strong preservatives. The dispensing container includes media within a dispensing tip which media removes or alters the strong preservative, while allowing the weak preservative to inhibit microbial growth in the tip media. The dispensing container is especially useful in delivering to the ocular environment ophthalmic solutions which are essentially free of strong preservative which may cause patient discomfort. A dispensing container including a pH-preserved pilocarpine solution is disclosed in one embodiment.

REFERENCES:
patent: 4812173 (1989-03-01), Tsao et al.
patent: 4889689 (1989-12-01), Tsao et al.
patent: 5056689 (1991-10-01), Heyl et al.
patent: 5080800 (1992-01-01), Heyl et al.

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