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Ophthalmic composition

  • US 10,603,382 B2
  • Filed: 09/10/2019
  • Issued: 03/31/2020
  • Est. Priority Date: 10/31/2014
  • Status: Active Grant
First Claim
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1. A composition comprising:

  • a. from about 10 ppm to about 1000 ppm of a polyquaternium compound having a weight average molecular weight of from about 150 to about 15,000 Daltons;

    b. from about 0.001% to about 0.5% of an anionic polymer having a weight average molecular weight of from about 250 to about 4,000,000 Daltons; and

    c. an effective amount of an organic acid, salts thereof or mixtures thereof, such that the organic acid binds with the polyquaternium compound at at least a 1;

    1 molar ratio;

    wherein the composition is substantially free of cationic oligomer compounds and precipitation inhibiting compounds and further wherein the composition is in the form of a spray or mist and is ophthalmically suitable for application to a subject'"'"'s eye.

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