Dopamine.

Dopamine is a neurotransmitter, one of those chemicals that is responsible for transmitting signals in between the nerve cells (neurons) of the brain. Very few neurons actually make dopamine. Some, in a part of the brain called the substantia nigra, are the cells that die during Parkinson’s disease. Dopamine appears to mediate desire and motivation more than pleasure.

Dosage 

• 2 to 20mcg/kg per minute (Symptomatic  Bradycary cardia)

• 5 - 10 / kg /minute ( post cardic arrest patient )