The embodiment of the proposed invention relates to prefilled syringe containing Diazepam whereby Diazepam is administered without pain and contamination. The present syringe being prefilled so chances of contamination, breakage, subsequent material loss and medical wastage are considerably reduced. The present syringe is prefilled with Diazepam and hence the drug is not exposed to the atmosphere prior to administration which prevents the drug from contamination. As the vials are not at all required, medical wastage considerably reduces. Also, it results in reduction of costs of vials thereby making the present invention economical.