People with Parkinson’s don’t have enough of a chemical called dopamine, because some of the nerve cells in their brain that make it have died. Although there’s currently no cure for Parkinson’s, a range of drugs, treatments and therapies are available to manage many of the symptoms caused by the lack of dopamine in the body. Dopamine agonist drugs act like dopamine to stimulate nerve cells. Apomorphine is a strong dopamine agonist. Unlike other dopamine agonist drugs, which are taken as tablets or patches, apomorphine is taken by intermittent injection or via infusion, using a pump. There is no link between apomorphine and the pain-killing drug morphine