The present application relates to a kind of preparation of
flurbiprofen injection method and its application, wherein, the method includes the following steps: (1) aqueous phase: in injection water,
osmotic pressure regulator and basic pH
regulator are added, stirring is mixed uniformly, heating, form aqueous phase;(2)
oil phase: injection oil,
flurbiprofen, emulsifier are mixed uniformly, heating, stirring is sheared and dissolved, form
oil phase;(3) initial milk: after the
oil phase and part of the aqueous phase are mixed and sheared on line, the remaining aqueous phase is all added to oil phase tank flushing, flushing water is again sheared on line, after initial milk is prepared, appropriate amount of acidic pH
regulator is added, and pH value is adjusted;(4) final milk: control first temperature, initial milk is homogenized under low pressure, control second temperature, then
high pressure homogenization is carried out, and final milk is prepared;(5) injection: final milk is cooled, filtered, filled, sterilized, so that
flurbiprofen injection is prepared;Optionally, wherein at least one step in steps (1) to (5) is completed under
nitrogen protection.