DOSAGE FORMS OF AMLODIPINE AND PROCESSES FOR THEIR PREPARATION

Title:

DOSAGE FORMS OF AMLODIPINE AND PROCESSES FOR THEIR PREPARATION

Document Type and Number:

WIPO Patent Application WO2004075825

Kind Code:

A3

Abstract:

The technical field of the present invention relates to stable solid dosage forms of amlodipine base; and process of preparation thereof. In particular, it relates to solid dosage forms free of dicalcium phosphate. The stable amlodipine solid dosage form includes amlodipine base, microcrystalline cellulose, is substantially free of dicalcium phosphate, and has less than about 0.5% concentration (w/w) of Impurity D after three months at 40°C and 75% relative humidity.

Inventors:

SINGH ROMI BARAT (IN)
SINGH NIDHI (IN)
NAGAPRASAD VISHNUBHOTLA (IN)
MALIK RAJIV (AT)

Application Number:

PCT/IB2004/000512

Publication Date:

November 11, 2004

Filing Date:

February 27, 2004

Export Citation:

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Assignee:

RANBAXY LAB LTD (IN)
SINGH ROMI BARAT (IN)
SINGH NIDHI (IN)
NAGAPRASAD VISHNUBHOTLA (IN)
MALIK RAJIV (AT)

International Classes:

A61K9/20; A61K31/40; A61K31/4422; A61K; (IPC1-7): A61K9/20; A61K31/4422

Domestic Patent References:

WO2002053135A1	2002-07-11
WO2004010976A1	2004-02-05

Foreign References:

US4879303A

1989-11-07

Other References:

DATABASE WPI Section Ch Week 200412, Derwent World Patents Index; Class B03, AN 2003-302830, XP002293385

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