[M. C. Tros de Ilarduya, C. Martin, M. M. Goni and M. C. Martinez-Oharriz, Polymorphism of sulindac: Isolation and characterization of a new polymorph and three new solvates, J. Pharm. Sci. 86 (1997) 248-251; DOI: 10.1021/js9601748.10.1021/js9601748]Search in Google Scholar
[H. G. Brittain, Polymorphism and solvatomorphism 2005, J. Pharm. Sci. 96 (2007) 705-760; DOI: 10.1002/jps.20772.10.1002/jps.20772]Search in Google Scholar
[M. R. Yadav, A. R. Shaikh, V. Ganesan, R. Giridhar and R. Chadha, Studies on the crystal forms of pefloxacin: Preparation, characterization and dissolution profile, J. Pharm. Sci. 97 (2007) 2637-2648; DOI: 10.1002/jps.21178.10.1002/jps.21178]Search in Google Scholar
[E. Swanepoel, W. Liebenberg and M. M. de Villiers, Quality evaluation of generic drugs by dissolution test: changing the USP dissolution medium to distinguish between active and non-active mebendazole polymorphs, Eur. J. Pharm. Biopharm. 55 (2003) 345-349; DOI: 10.1016/S09396411(03)00004-3.]Search in Google Scholar
[S. Ghodbane and J. A. McCauley, Study of polymorphism of 3-((3-(2-(7-chloro-2-quinolinyl)-(E)-ethenyl)phenyl)((3-(dimethylamino-3-oxopropyl)thio)methyl)-thio) propanoic acid (MK571) by DSC, TG, XRPD and solubility measurements, Int. J. Pharm. 59 (1990) 281-286; DOI: 10.1016/0378-5173(90)90119-O.10.1016/0378-5173(90)90119-O]Search in Google Scholar
[D. Giron, C. Goldbronn, M. Mutz, S. Pfeffer, P. Piechon and P. Schwab, Solid state characterizations of pharmaceutical hydrates, J. Therm. Anal. 68 (2002) 453-465.10.1023/A:1016031517430]Search in Google Scholar
[B. K. Saha, A. Nangia and M. Jaskolski, Crystal engineering with hydrogen bonds and halogen bonds, Cryst. Eng. Comm. 7 (2005) 355-358; DOI: 10.1039/b501693b.10.1039/b501693b]Search in Google Scholar
[Martindale, The Complete Drug Reference, 34th ed., Pharmaceutical Press, London 2005, p. 553.]Search in Google Scholar
[H. K. Chan and I. Gonda, Methotrexate: Existence of different types of solid, Int. J. Pharm. 68 (1991) 179-190.]Search in Google Scholar
[K. Urakami, Characterization of pharmaceutical polymorphs by isothermal calorimetry, Curr. Pharm. Biotech. 6 (2005) 193-203; DOI: 10.2174/1389201054022904.10.2174/138920105402290415974974]Search in Google Scholar
[H. G. Brittain, Spectral methods for the characterization of polymorphs and solvates, J. Pharm. Sci. 86 (1997) 405-412; DOI: 10.1021/js960238e.10.1021/js960238e9109040]Search in Google Scholar
[D. Giron, Investigations of polymorphism and pseudo-polymorphism in pharmaceuticals by combined thermoanalytical techniques, J. Therm. Anal. 64 (2001) 37-60.10.1023/A:1011572610005]Search in Google Scholar
[J. Bauer, J. Morley, S. Spanton, F. J. J. Leusen, R. Henry, S. Hollis, W. Heitmann, A. Mannino, J. Quick and W. Dziki, Identification, preparation and characterization of several polymorphs and solvates of terazosin hydrochloride, J. Pharm. Sci. 95 (2006) 917-928.10.1002/jps.2042516493591]Search in Google Scholar
[G. W. Lu, M. Hawley, M. Smith, B. M. Geiger and W. Pfund, Characterization of a novel polymorphic form of celecoxib, J. Pharm. Sci. 95 (2006) 305-317; DOI: 10.1002/jps.20522.10.1002/jps.20522]Search in Google Scholar
[A. Othman, J. S. O. Evans, I. R. Evans and R. K. Harris, Structural study of polymorphs and solvates of finasteride, J. Pharm. Sci. 96 (2007) 1380-1397; DOI: 10.1002/jps.20940.10.1002/jps.20940]Search in Google Scholar
[M. R. Caira, G. Bettinetti, M. Sorrenti and L. Catenacci, Relationships between structural and thermal properties of anhydrous and solvated crystalline forms of brodimoprim, J. Pharm. Sci. 96 (2007) 996-1007; DOI: 10.1002/jps.20934.10.1002/jps.20934]Search in Google Scholar
[M. Sheikhzadeh, S. Rohani, A. Jutan and T. Manifar, Quantitative and molecular analysis of buspirone hydrochloride polymorphs, J. Pharm. Sci. 96 (2007) 569-583; DOI: 10.1002/jps.20723.10.1002/jps.20723]Search in Google Scholar
[G. D. Christian, Acid-base Equilibria, in Analytical Chemistry, 6th ed., John Wiley, Singapore 2004, pp. 253-254.]Search in Google Scholar
[P. Balk and G. C. Benson, Calorimetric determination of the surface enthalpy of potassium chloride, J. Phys. Chem. 63 (1959) 1009-1012.10.1021/j150576a605]Search in Google Scholar
[USP 27, NF 22, USP Convention Inc., Rockville (MD) 2004, pp. 2303-2304.]Search in Google Scholar
[P. A. Sutton, V. Cody and G. D. Smith, Crystal structure of methotrexate tetrahydrate, J. Am. Chem. Soc. 108 (1986) 4155-4158; DOI: 10.1021/ja00274a051.10.1021/ja00274a051]Search in Google Scholar
[T. W. Hambley, H. K. Chan and I. Gonda, Crystal and molecular structure of methotrexate, J. Am. Chem. Soc. 108 (1986) 2103-2105; DOI: 10.1021/ja00268a068.10.1021/ja00268a068]Search in Google Scholar
[M. R. Caira, G. Bettinetti and M. Sorrenti, Structural relationships, thermal properties and physicochemical characterization of anhydrous and solvated crystalline forms of tetroxoprim, J. Pharm. Sci. 91 (2002) 467-481; DOI: 10.1002/jps.10034.10.1002/jps.10034]Search in Google Scholar
[K. Terada, H. Kitano, Y. Yoshihashi and E. Yonemochi, Quantitative correlation between initial dissolution rate and heat of solution, Pharm. Res. 17 (2008) 920-924.10.1023/A:1007514902161]Search in Google Scholar
[I. P. Dominic, B. S. Gerald, J. M. Stevenson, S. Lindenbaum, A. W. Douglas, S. D. Klein and J. A. McCauley, High resolution spectroscopic evidence and solution calorimetry studies on the polymorphs of enalapril maleate, Int. J. Pharm. 28 (1986) 183-191.10.1016/0378-5173(86)90244-9]Search in Google Scholar