The embodiment of the proposed invention relates to Glucagon prefilled syringe for administration of sterile and efficient drug. The present syringe having premixed Glucagon, ready to administer dosage does not require mixing them before administration and hence there are no chances of contamination unlike the conventional ways of mixing Glucagon before administration. Also, this eliminates errors due to inappropriate mixing. The present syringe is convenient to handle and store compared to the conventional syringes eliminating the risk of breakage and associated material loss.