the body and preventing misoperation or damage during transport fetching and using the present invention is a novel design with industrial applicability and can be adapted to generalized use in the industries application_number US 59582504 A description advantages and features of the present invention will become apparent from the following detailed descriptions of the invention in conjunction with the accompanying drawings fig1 and 11 show a syringe for premixing and administering powder medicament according to the present invention the syringe basically comprises a plunger 1 a cylindrical sleeve 5 a solvent bottle 8 a connecting tube 14 a solute bottle 10 and a syringe needle 16 having two piercing ends the solvent bottle 8 containing a diluent 18 is not pressurized and is under normal pressure the plunger 1 is provided above the sleeve 5 and the solvent bottle 8 both the solvent bottle 8 and the solute bottle 10 are packaged inside the sleeve 5 the solvent bottle 8 is positioned on the solute bottle 10 and is partially inserted and slidably fitted into the solute bottle 10 the lower end of the solute bottle is connected with the syringe needle 16 two restricting slots 4 are formed on the sleeve 5 symmetrical to the central axis of the sleeve 5 the restricting slots 4 comprise two u201c l.