A needleless method for injecting APOMORPHINE, a potent DOPAMINE AGONIST MEDICATION used as a rescue drug for Parkinson’s crisis. The penjet system delivers a premeasured amount of medication, which is injected into the subcutaneous tissue in the abdomen, thigh, or upper arm, where the body rapidly absorbs it. The penjet contains a small cylinder of pressurized nitrogen, an inert gas that, when released, propels the drug through the skin and into the subcutaneous tissue. This delivery allows the caregiver to administer the rescue drug. The penjet with apomorphine requires a doctor’s prescription.