The new prefilled syringe has the same composition but removes the need for reconstitution, providing a more convenient option for health care providers who administer vaccines. According to the ...
The needle shield of the prefilled syringe contains dry natural rubber (a latex derivative). Imitrex STATdose System, 4 mg, containing 1 Imitrex STATdose Pen, 2 prefilled single-dose syringe ...