Subcutaneous insulin is given only by syringe, pen, autoinjector, or hyprospray.
When insulin is administered by vein, into the muscle, or with an infusion pump, only the short-acting insulin is given. The fastest way to receive insulin is through an injection into the vein. The next fastest way is to have it delivered by syringe and needle into the muscle. Clean bottle top. Pull air into syringe and insert needle into bottle.