Dopamine injections are usually used in critical cases to treat low blood pressure resulting from shock, severe bleeding, or heart failure. The drug works by dilating blood vessels and increasing blood flow, which helps improve blood pressure and stabilize the patient's condition. In cases of heart failure, dopamine may be prescribed to improve the performance of the heart muscle.
Dopamine is also used to treat Parkinson's disease, which is a neurodegenerative disease. The drug is one of the neurotransmitters associated with feelings of happiness and reward and is sometimes used as an adjuvant treatment for depression. It is used to treat attention deficit hyperactivity disorder.