| Namespace | MPheno.ontology | Obsolete | false |
| description | greater or less than the normal amount of this catecholamine neurotransmitter and neurohormone, derived from tyrosine and the precursor to norepinephrine and epinephrine; functions as a neurotransmitter in the brain and as a hormone to inhibit the release of prolactin from the anterior lobe of the pituitary |
