Dopamine is a neurotransmitter that plays a critical role in the brain's reward and pleasure centers. It influences movement, motivation, and emotional response. Dopamine is often referred to as "the pleasure molecule." There are several synonyms for dopamine, such as Intropin, Revivan, and Dopastat. Intropin is a brand name for dopamine that is used to treat low blood pressure and shock. Revivan is another brand name for dopamine that is used to treat heart failure. Dopastat is a brand name for the dopamine receptor agonist, fenoldopam. This medication is used to treat hypertension and can also improve renal function.