IP Library Granted Patent US 9,427,416
Granted Patent B2
US 9,427,416 · App. 13/537,473 · Granted Aug 30, 2016

Composition and method for treating hemorrhoids and/or anorectal disorders

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Quick Facts
Patent No.
US 9,427,416
App. No.
13/537,473
Granted
Aug 30, 2016
Kind
B2
Abstract

The invention provides an oil-in-water emulsion useful in the treatment of anorectal disorders comprising a local anesthetic, vasoconstrictor, glycerin and water, and method of preparation of the emulsion and a method for treating hemorrhoids using the composition of the invention.

Claims (3)

1. A pharmaceutical composition consisting of 1.00% w/w pramoxine hydrochloride, 0.250% w/w phenylephrine hydrochloride, 15.0% w/w white petrolatum, 14.4% w/w glycerin, 1.00% w/w steareth-20, 1.00% w/w steareth-2, 3.00% w/w glyceryl monostearate and laureth-23 70/30, 5.00% w/w stearyl alcohol, 5.00% w/w cetyl alcohol, 0.200% w/w methylparaben, 0.100% w/w propylparaben, 0.200% w/w sodium benzoate, 0.0500% w/w disodium edetate, 0.500% w/w mixed tocopherols, 0.200% w/w propyl gallate and BHA in propylene glycol, 0.250% w/w sodium carboxymethylcellulose, 0.100% w/w xanthan, 0.200% w/w citric acid, 0.100% w/w aloe vera oil, 0.100% w/w vitamin E acetate, 1.00% w/w D-panthenol, and 51.35% w/w water; wherein the pharmaceutical composition is an oil-in-water emulsion and the oil-in-water emulsion is a cream, wherein the pramoxine hydrochloride and phenylephrine hydrochloride are solubilized in the water portion of the oil-in-water emulsion, wherein the at least one non-ionic emulsifier includes an ethoxylated fatty alcohol that is a solid at room temperature, wherein the ratio of the glycerin amount by weight to the sum of the glycerin amount and water by weight is about 20% to about 45%, wherein the pH range of the composition is about 3.5 to about 4.2, and wherein the composition provides hydration to hemorrhoid and/or anorectal tissue.

2. A method of treating hemorrhoids and/or anorectal disorders in humans comprising administering to the anorectal region a safe and effective amount of a pharmaceutical composition, the pharmaceutical composition consisting of 1.00% w/w pramoxine hydrochloride, 0.250% w/w phenylephrine hydrochloride, 15.0% w/w white petrolatum, 14.4% w/w glycerin, 1.00% w/w steareth-20, 1.00% w/w steareth-2, 3.00% w/w glyceryl monostearate and laureth-23 70/30, 5.00% w/w stearyl alcohol, 5.00% w/w cetyl alcohol, 0.200% w/w methylparaben, 0.100% w/w propylparaben, 0.200% w/w sodium benzoate, 0.0500% w/w disodium edetate, 0.500% w/w mixed tocopherols, 0.200% w/w propyl gallate and BHA in propylene glycol, 0.250% w/w sodium carboxymethylcellulose, 0.100% w/w xanthan, 0.200% w/w citric acid, 0.100% w/w aloe vera oil, 0.100% w/w vitamin E acetate, 1.00% w/w D-panthenol, and 51.35% w/w water;

wherein the pharmaceutical composition is an oil-in-water emulsion and the oil-in-water emulsion is a cream, wherein the pramoxine hydrochloride and phenylephrine hydrochloride are solubilized in the water portion of the oil-in-water emulsion, wherein the at least one non-ionic emulsifier includes an ethoxylated fatty alcohol that is a solid at room temperature, wherein the ratio of the glycerin amount by weight to the sum of the glycerin amount and water by weight is about 20% to about 45%, wherein the pH range of the composition is about 3.5 to about 4.2, and wherein the composition provides hydration to hemorrhoid and/or anorectal tissue.

Assignments (6)
CHANGE OF NAME Recorded Mar 1, 2024
From: GLAXOSMITHKLINE CONSUMER HEALTHCARE HOLDINGS (US) LLC
To: HALEON US HOLDINGS LLC
Reel/Frame 066713/0558 →
CHANGE OF NAME Recorded Feb 28, 2024
From: GLAXOSMITHKLINE CONSUMER HEALTHCARE HOLDINGS (US) LLC
To: HALEON US HOLDINGS LLC
Reel/Frame 066701/0387 →
MERGER AND CHANGE OF NAME Recorded Apr 6, 2022
From: PF CONSUMER HEALTHCARE 1 LLC; GLAXOSMITHKLINE CONSUMER HEALTHCARE HOLDINGS (US) LLC
To: GLAXOSMITHKLINE CONSUMER HEALTHCARE HOLDINGS (US) LLC
Reel/Frame 059620/0041 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 15, 2019
From: WYETH LLC
To: PF CONSUMER HEALTHCARE 1 LLC
Reel/Frame 050727/0184 →
CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT SERIAL NUMBER 12357473 PREVIOUSLY RECORDED ON REEL 029018 FRAME 0126. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Dec 7, 2012
From: WYETH
To: WYETH LLC
Reel/Frame 029431/0012 →
CHANGE OF NAME Recorded Sep 20, 2012
From: WYETH
To: WYETH LLC
Reel/Frame 029018/0126 →