Source:http://linkedlifedata.com/resource/umls/id/C0041479
MSH: An indirect sympathomimetic. Tyramine does not directly activate adrenergic receptors, but it can serve as a substrate for adrenergic uptake systems and monoamine oxidase so it prolongs the actions of adrenergic transmitters. It also provokes transmitter release from adrenergic terminals. Tyramine may be a neurotransmitter in some invertebrate nervous systems.,CSP: decarboxylation product of tyrosine; structurally similar to epinephrine with weak adrenergic activity.