发明名称 |
Process for the preparation of a medicament comprising vardenafil hydrochloride trihydrate |
摘要 |
The present invention relates to a process for the preparation of a medicament containing vardenafil hydrochloride trihydrate in solid form, in which vardenafil hydrochloride trihydrate is processed with suitable pharmaceutical auxiliaries at a temperature of from approx. 20° C. to approx. 45° C. |
申请公布号 |
US8772292(B2) |
申请公布日期 |
2014.07.08 |
申请号 |
US200812600446 |
申请日期 |
2008.06.12 |
申请人 |
Ratiopharm GmbH |
发明人 |
Deshpande Yogesh S.;Brueck Sandra;Schulze Nahrup Julia;Schnitter Birgit;Gat Ganesh;Hussain Javed |
分类号 |
A61K31/53;A61K9/28 |
主分类号 |
A61K31/53 |
代理机构 |
Clark & Elbing LLP |
代理人 |
Clark & Elbing LLP |
主权项 |
1. A process for the preparation of a medicament containing vardenafil hydrochloride trihydrate in solid form, characterized in that vardenafil hydrochloride trihydrate is processed with suitable pharmaceutical auxiliaries at a temperature of from approx. 20° C. to approx. 45° C., the relative humidity of the processing atmosphere is approx. 30% to approx. 90%, and the processed medicament is coated with a film in a further step at a temperature of from approx. 40° C. to approx. 55° C., the entire process being carried out without a rehydration step, whereby vardenafil hydrochloride trihydrate is processed to the medicament in solid form without loss of hydrate during the entire process. |
地址 |
Ulm DE |