How Supplied Image (How Supplied Image)
This text provides instructions for using an injector for an unknown substance. The first two steps entail removing protective caps and threading a vial into the injector. The third step involves twisting the injector until a metal cannula pierces the stopper. It is emphasized that the vial should not be pushed into the injector to avoid misalignment. The fourth step is to remove the cover and expel air before performing the injection.*