The antipsychotic drug fluphenazine has a prolonged period of action when it is given by intramuscular injection, but not when it is given by intravenous injection.Suggest why this is the case.
精神抑制药氟奋乃定,采用肌肉注射的话会有段延迟的反应期,但是采用静脉注射却没有,说
为什么会出现这
情况。