IP Library › Granted Patent US 7,662,835
Granted Patent B2
US 7,662,835 · App. 11/534,839 · Granted Feb 16, 2010

Methods of treating allergic reactions using an anhydrous form of antihistaminic piperidine derivatives

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Quick Facts
Patent No.
US 7,662,835
App. No.
11/534,839
Granted
Feb 16, 2010
Kind
B2
Abstract

The present invention is related to novel processes for preparing anhydrous and hydrated forms of piperidine derivatives, polymorphs and pseudomorphs thereof of the formulas which are useful as antihistamines, antiallergic agents and bronchodilators.

Claims (1)

1. A method of treating an allergic reaction in a patient in need thereof comprising administering to said patient a solid unit dosage form comprising an effective amount of 4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-hydroxybutyl]-α,α-dimethylbenzeneacetic acid hydrochloride comprising Form I anhydrous 4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-hydroxybutyl]-α,α-dimethylbenzeneacetic acid hydrochloride.

Assignments (12)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2012
From: AVENTISUB II INC.
To: CHATTEM INC.
Reel/Frame 027724/0097 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2010
From: AVENTIS HOLDINGS INC.
To: AVENTISUB II INC.
Reel/Frame 024006/0487 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2009
From: HMR PHARMA INC.
To: AVENTIS HOLDINGS INC.
Reel/Frame 023475/0843 →
CHANGE OF NAME Recorded Nov 5, 2009
From: MARION MERRELL DOW INC.
To: HOECHST MARION ROUSSEL, INC.
Reel/Frame 023475/0662 →
CHANGE OF NAME Recorded Nov 5, 2009
From: HOECHST MARION ROUSSEL, INC.
To: AVENTIS PHARMACEUTICALS INC.
Reel/Frame 023475/0748 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 5, 2009
From: AVENTIS PHARMACEUTICALS INC.
To: HMR PHARMA INC.
Reel/Frame 023475/0772 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 30, 2009
From: AVENTIS PHARMACEUTICALS INC.
To: HMR PHARMA INC.
Reel/Frame 023447/0687 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 30, 2009
From: HMR PHARMA INC.
To: AVENTIS HOLDINGS INC.
Reel/Frame 023447/0781 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2009
From: CARR, ALBERT A.
To: AVENTIS PHARMACEUTICALS INC.
Reel/Frame 023444/0305 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2009
From: MCCARTY, FREDERICK J.
To: MARION MERRELL DOW INC.
Reel/Frame 023444/0439 →
MERGER Recorded Oct 29, 2009
From: MARION MERRELL DOW INC.
To: AVENTIS PHARMACEUTICALS INC.; HOECHST MARION ROUSSEL, INC.
Reel/Frame 023444/0466 →
CHANGE OF NAME Recorded Oct 29, 2009
From: HOECHST MARION ROUSSEL, INC.
To: AVENTIS PHARMACEUTICALS INC.
Reel/Frame 023444/0544 →