Evaluation of in vitro precipitation methods

Ping Li, Rao Vishnuvajjala, S. Esmail Tabibi, Samuel H. Yalkowsky

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Four in vitro precipitation methods were tested and evaluated using flavopiridol and diazepam formulations. The methods include static serial dilution, dynamic injection, and dropwise addition with and without stirring. The results generated from these methods are comparable and complementary. The static serial dilution method is most effective in quantifying the amount of precipitation and more descriptive of the formation and redissolution of the precipitate than the others. The dynamic injection method, however, has its merit in more realistically simulating the physiological environment of drug-blood interaction near the injection sites.

Original languageEnglish (US)
Pages (from-to)196-199
Number of pages4
JournalJournal of pharmaceutical sciences
Issue number2
StatePublished - Feb 1998

ASJC Scopus subject areas

  • Pharmaceutical Science


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