The invention provides taxol freeze dried micro
emulsion used for injection and a preparation method thereof. The freeze dried micro
emulsion comprises taxol in effective dosage as the
drug and
pharmaceutic adjuvant such as
oil phase, an emulsifier, an assistant emulsifier, a pH
regulator, isotonic
regulator and a freeze dried protective agent. The preparation method comprises the following steps: weighing the emulsifier in the amount according to the prescription, after evenly stirring the assistant emulsifier and oil for injection, adding the taxol into the mixed liquor and stirring for complete
dissolution, then adding water for injection, completely stirring, obtaining taxol micro
emulsion after regulating the pH value, further adding the freeze dried protective agent, and obtaining the freeze dried micro emulsion after vacuum
freeze drying. Micro emulsion can be rapidly recovered by using physiologically compatible solution such as normal
saline, glucose solution or Ringer's solution for
dilution before use. The freeze dried micro emulsion and the preparation method are characterized in that through the further
freeze drying technique to the taxol micro emulsion, the stability and the
efficacy of the taxol are obviously enhanced, and the toxic and side effects are greatly reduced; especially, the freeze-
drying method realizes very good protection function to the micro emulsion and avoids
effusion of
drug, thereby breaking through a new prospect for the establishment of stable
dose pattern of a taxol micro emulsion
drug loaded
system and long-term preservation thereof. The preparation method for the freeze dried micro emulsion has the advantages of simple preparation technique, no
organic solvent and low cost, therefore, the invention is suitable for industrialized
mass production.