Parcel Select. Parcel Select is an economical choice for large or heavy packages and is the only USPS service that can be used for packages over 108 in girth. Cost is determined based on the distance, weight and dimensions of the mailpiece.
Definition of dopamine. : a monoamine C8H11NO2 that is a decarboxylated form of dopa and that occurs especially as a neurotransmitter in the brain.
Dopamine Therapeutic Use. Dopamine is a vital neurotransmitter in the brain. It plays a role in several functions in the brain including movement, memory, pleasurable reward, behavior and cognition, attention, inhibition of prolactin production, sleep, mood and learning. Excess and deficiency of this vital chemical is the cause of several disease conditions.