Ortho diphenylhydratoin freeze dried powder for injection and its preparation method
Patent number: CN1555805
Publication date: 2004-12-22
Inventor: CHEN QINGCAI (CN); ZHAO JUN (CN)
Applicant: CHEN QINGCAI (CN)
Classification:
- international: A61K31/675; A61K9/19; A61P25/08
- european:
Application number: CN200410013843 20040108
Priority number(s): CN200410013843 20040108
Abstract of CN1555805
A fosphenytoin sodium injection in the form of freeze dried powder for preventing and treating epilepsy is prepared from fosphenytoin sodium, pharmacologically acceptable auxiliary, and water for injection through mixing fosphenytoxin sodium with water for injection and aminobutanetriol, heating while stirring, regulating pH value 8.0-10.0, adding charcoal for injection, heating while stirring, removing charcol, sterilizing and freeze drying.
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