Patents Assigned to Dr. Reddy's Laboratories Ltd.
  • Publication number: 20090069557
    Abstract: A process for preparation of gemcitabine hydrochloride and purification thereof.
    Type: Application
    Filed: February 6, 2007
    Publication date: March 12, 2009
    Applicants: Dr. Reddy's Laboratories Ltd., Dr. Reddy's Laboratories, Inc.
    Inventors: Venkata Raghavendra Acharyulu Palle, Sekhar Munaswamy Nariyam, Veerender Murki, Anirudha Arvind Waghmare, Vishnu Nandkishore Mundhada
  • Publication number: 20090054455
    Abstract: Co-crystals comprising aripiprazole and fumaric acid.
    Type: Application
    Filed: February 2, 2007
    Publication date: February 26, 2009
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Surya Narayana Devarakonda, Krishnamurthi Vyas, Sivakumar Reddy Bommareddy, Pratap Reddy Padi, Balaji Raghupathy
  • Publication number: 20090018351
    Abstract: The present invention relates to a process for preparing enantiomerically enriched citalopram via methylating enantiomerically enriched didesmethylcitalopram, which is prepared by directly resolving racemic didesmethylcitalopram using a chiral acid.
    Type: Application
    Filed: November 12, 2004
    Publication date: January 15, 2009
    Applicants: DR. REDDY'S LABORATORIES, INC., DR. REDDY'S LABORATORIES LTD.
    Inventors: Venkataraman Sundaram, Vijayavithai Thippannachar Mathad, Pravinachandra Jayanthilal Venkavala, Chandrashekar Ravirama Elati, Naveenkumar Kolla, Shanmugam Govindan, Subrahmanyeshwara Rao Chalamala, Srinivas Gangula
  • Publication number: 20080214823
    Abstract: A process for preparing amorphous montelukast sodium comprises removing solvent from a solution comprising montelukast sodium using agitated thin film drying.
    Type: Application
    Filed: July 20, 2006
    Publication date: September 4, 2008
    Applicant: Dr. Reddy's Laboratories Ltd.
    Inventors: Pratap Reddy Padi, Satyanarayana Bollikonda, Alok Kumar Srivastava, Ravi Kumar Kasturi, Rajender Reddy Jinna, Narsimha Naidu Mopidevi
  • Publication number: 20080214535
    Abstract: A coprecipitate comprising amorphous aprepitant and a pharmaceutically acceptable carrier is prepared by rapidly removing solvent from a solution containing aprepitant and the carrier.
    Type: Application
    Filed: July 31, 2006
    Publication date: September 4, 2008
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Vijayavitthal Thippannachar Mathad, Pravinchandra Vankawala Jayantilal, Chandrasekhar Ravi Ram Elati, Subrahmanyeswara Rao Chlamala, Naveen Kumar Kolla, Srinivas Gangula, Srirami Reddy Kikkuru, Srinivasan Neti, Raveendra Reddy Chinta
  • Publication number: 20080193524
    Abstract: The invention relates to extended release pharmaceutical compositions of venlafaxine or pharmaceutically acceptable salts. More particularly this invention relates to a pharmaceutical composition having a core comprising venlafaxine and a coating thereupon. The coating utilizes at least one water insoluble polymer and at least one polymer having pH dependent solubility to delay and modulate the release of the drug in an extended manner.
    Type: Application
    Filed: July 28, 2006
    Publication date: August 14, 2008
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Ravinder Kodipyaka, Subhash Pandurang Gore, Indu Bhushan, Mailatur Sivaraman Mohan
  • Patent number: 7160912
    Abstract: The present invention relates to novel oxazolidinone compounds of formula (I), their stereoisomers, their salts and pharmaceutical compositions containing them. The present invention also relates to a process for the preparation of the above said novel compounds, their stereoisomers, their salts and pharmaceutical compositions.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: January 9, 2007
    Assignees: Dr.Reddy's Laboratories Ltd., Dr. Reddy's Laboratories, Inc.
    Inventors: Natesan Selvakumar, Jagattaran Das, Sanjay Trehan, Javed Iqbal, Magadi Sitaram Kumar, Ramanujam Rajagopalan, Mamidi Naga Venkata Srinivasa Rao
  • Publication number: 20070004783
    Abstract: The present invention relates to novel crystalline forms of Amlodipine Maleate These crystalline forms are useful as pharmaceutical agents. This invention also relates to pharmaceutical compositions which include these crystalline forms and to methods of treatment using these crystalline forms. The novel crystalline compounds of the present invention are useful as calcium channel blockers and are thus useful as anti-ischaemic and anti-hypertensive agents.
    Type: Application
    Filed: June 21, 2006
    Publication date: January 4, 2007
    Applicant: DR. REDDY'S LABORATORIES LTD.
    Inventors: Sajja Eswaraiah, Ganta Reddy, Jambula Reddy, Kammili Rambabu, Bolugoddu Bhaskar
  • Publication number: 20070004712
    Abstract: The present invention relates to novel oxazolidinone compounds of formula (I), their stereoisomers, their salts and pharmaceutical compositions containing them. The present invention also relates to a process for the preparation of the above said novel compounds, their stereoisomers, their salts and pharmaceutical compositions.
    Type: Application
    Filed: August 29, 2006
    Publication date: January 4, 2007
    Applicants: Dr. Reddy's Laboratories Ltd., Dr. Reddy's Laboratories, Inc.
    Inventors: Natesan Selvakumar, Jagattaran Das, Sanjay Trehan, Javed Iqbal, Magadi Kumar, Ramanujam Rajagopalan, Mamidi Naga Rao
  • Patent number: 7157581
    Abstract: The present invention relates to novel antiobesity and hypocholesterolemic compounds, their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them. More particularly, the present invention relates to novel ?-aryl-?-oxysubstituted alkylcarboxylic acids of the general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: January 2, 2007
    Assignees: Dr. Reddy's Laboratories Ltd., Dr. Reddy's Laboratories, Inc.
    Inventors: Ranga Madhavan Gurram, Venkateswarlu Akella, Rajagopalan Ramanujam, Ranjan Chakrabarti, Parimal Misra, Vidya Bhushan Lohray, Braj Bhushan Lohray, Rao Bheema Paraselli
  • Publication number: 20060293315
    Abstract: The present invention relates to novel oxazolidinone compounds of formula (I), their stereoisomers, their salts and pharmaceutical compositions containing them. The present invention also relates to a process for the preparation of the above said novel compounds, their stereoisomers, their salts and pharmaceutical compositions.
    Type: Application
    Filed: August 29, 2006
    Publication date: December 28, 2006
    Applicants: Dr. Reddy's Laboratories Ltd., Dr. Reddy's Laboratories, Inc.
    Inventors: Natesan Selvakumar, Jagattaran Das, Sanjay Trehan, Javed Iqbal, Magadi Kumar, Ramanujam Rajagopalan, Mamidi Naga Rao
  • Patent number: 6897199
    Abstract: The present invention relates to pharmaceutically acceptable salts of compound of the general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: May 24, 2005
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Om Reddy Gaddam, Ramabhadra Sarma Mamillapalli, Prabhakar Chebiyyam, Madhusudan Gutta
  • Patent number: 6846824
    Abstract: Compounds of formula (I) its tautomeric forms, its stereoisomers, its polymorphs, its pharmaceutically acceptable salts or its pharmaceutically acceptable solvates can be used to prevent or treat diabetes caused by insulin resistance or impaired glucose tolerance or complications of diabetes caused by insulin resistance or impaired glucose tolerance. The compounds can also be used to reduce cholesterol, body weight, blood glucose, triglycerides and free fatty acids in the blood.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: January 25, 2005
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Ashok Channaveerappa Bajji, Shivaramayya Kalchar, Rajagopalan Ramanujam, Ranjan Chakrabarti, Javed Iqbal, Ranga Madhavan Gurram
  • Patent number: 6809095
    Abstract: A method for preventing or treating complications of diabetes by administering a compound of formula (I) its tautomeric forms, its stereoisomers, its polymorphs, its pharmaceutically acceptable salts or its pharmaceutically acceptable solvates.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: October 26, 2004
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Ashok Channaveerappa Bajji, Shivaramayya Kalchar, Rajagopalan Ramanujam, Ranjan Chakrabarti
  • Patent number: 6780992
    Abstract: The present invention relates to novel antidiabetic compounds, their tautomeric forms, their derivatives, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them. This invention particularly relates to novel azolidinedione derivatives of the general formula (I), and their pharmaceutically acceptable salts, pharmaceutically acceptable solvates and pharmaceutical compositions containing them.
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: August 24, 2004
    Assignees: Dr. Reddy's Laboratories Ltd., Dr. Reddy's Laboratories Inc.
    Inventors: Vidya Bhushan Lohray, Braj Bhushan Lohray, Rao Bheema Paraselli, Ranga Madhavan Gurram, Rajagopalan Ramanujam, Ranjan Chakrabarti, Sarma K.S. Pakala
  • Patent number: 6573268
    Abstract: The present invention relates to novel antidiabetic compounds, their tautomeric forms, their derivatives, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them. This invention particularly relates to novel azolidinedione derivatives of the general formula (I), and their pharmaceutically acceptable salts, pharmaceutically acceptable solvates and pharmaceutical compositions containing them.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: June 3, 2003
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Vidya Bhushan Lohray, Braj Bhushan Lohray, Rao Bheema Paraselli, Ranga Madhavan Gurram, Rajagopalan Ramanujam, Ranjan Chakrabarti, Sarma K. S. Pakala
  • Patent number: 6531596
    Abstract: The present invention relates to an improved process for the preparation of novel antidiabetic compounds having formula (1) where R1 represents hydrogen or lower alkyl group and X represents hydrogen or halogen atom.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: March 11, 2003
    Assignee: Dr. Reddy's Laboratories Ltd.
    Inventors: Mahender Rao Siripragada, Prabhakar Chebiyyam, Rajender Kumar Potlapally, Chandra Sekhar Batchu, Ramabhadra Sarma Mamillapalli, Om Reddy Gaddam
  • Publication number: 20030013729
    Abstract: The present invention relates to novel hypolipidemic, antihyperglycemic compounds, their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them. More particularly, the present invention relates to novel &bgr;-aryl-&agr;-oxysubstituted alkylcarboxylic acids of the general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable salts, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them.
    Type: Application
    Filed: April 8, 2002
    Publication date: January 16, 2003
    Applicant: DR. REDDY'S LABORATORIES LTD.
    Inventors: Javed Iqbal, Gurram Ranga Madhavan, Saibal Kumar Das, Debnath Bhunia, Ranjan Chakrabarti, Ramanujam Rajagopalan
  • Publication number: 20020169175
    Abstract: The present invention relates to pharmaceutically acceptable salts of the general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them.
    Type: Application
    Filed: February 4, 2002
    Publication date: November 14, 2002
    Applicant: DR. REDDY'S LABORATORIES LTD.
    Inventors: Om Reddy Gaddam, Chandra Sekhar Batchu, Rajender Kumar Potlapally, Ramabhadra Sarma Mamillapalli, Bheema Rao Paraselli, Naga Venkata Srinivasa Rao Mamidi
  • Publication number: 20020169146
    Abstract: The present invention relates to pharmaceutically acceptable salts of compound of the general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, their pharmaceutically acceptable solvates and pharmaceutically acceptable compositions containing them.
    Type: Application
    Filed: February 4, 2002
    Publication date: November 14, 2002
    Applicant: DR. REDDY'S LABORATORIES LTD.
    Inventors: Om Reddy Gaddam, Ramabhadra Sarma Mamillapalli, Prabhakar Chebiyyam, Madhusudan Gutta