AIM:To study the crystals form of tegaserod maleate. METHOD:The DSC,TGA and X -ray powder diffraction were used in this observation. RESULT and CONCLUSION: Twe crystals of tegaserod maleate,S-form and W-form,were obta...AIM:To study the crystals form of tegaserod maleate. METHOD:The DSC,TGA and X -ray powder diffraction were used in this observation. RESULT and CONCLUSION: Twe crystals of tegaserod maleate,S-form and W-form,were obtained and it was confirmed that the S-crystal form is a monohydrate crystal. Preliminary pharmacokinetic test shows that the S-crystal form bioavailability is 46% in mice and the W-crystal form is only 19%.展开更多
文摘AIM:To study the crystals form of tegaserod maleate. METHOD:The DSC,TGA and X -ray powder diffraction were used in this observation. RESULT and CONCLUSION: Twe crystals of tegaserod maleate,S-form and W-form,were obtained and it was confirmed that the S-crystal form is a monohydrate crystal. Preliminary pharmacokinetic test shows that the S-crystal form bioavailability is 46% in mice and the W-crystal form is only 19%.