Crystalline forms of venlafaxine hydrochloride

Details Crystalline forms of venlafaxine hydrochloride Crystalline forms of venlafaxine hydrochloride

2005-06-14

2005-06-14

Barts, Samuel (Department: 1621)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

C564S336000, C564S355000, C564S424000, C564S425000, C564S360000

Reexamination Certificate

active

06906087

ABSTRACT:
Crystalline forms of Venlafaxine hydrochloride were found, referred to hereinafter as polymorphic Forms A, B and D. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms and pharmaceutical compositions comprising the crystalline forms.

REFERENCES:
patent: 5043466 (1991-08-01), Shepard
patent: 2002/0143211 (2002-10-01), Dolitzky et al.
patent: 2002/0183553 (2002-12-01), Dolitzky et al.
patent: 2003/0105359 (2003-06-01), Van Der Schaaf et al.
patent: 2003/0109585 (2003-06-01), Ali et al.
patent: 0112669 (1984-07-01), None
patent: 0444855 (1991-09-01), None
patent: 02/45658 (2002-06-01), None
patent: 02/46140 (2002-06-01), None
J. Yardley et al., J. Med. Chem. (1990), vol. 33, pp. 2899-2905.

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