Dopamine, often referred to as the “feel-good” neurotransmitter ... is packed with compounds like anandamide and small amounts of caffeine, which stimulate the release of dopamine.

A fluorescent probe designed to incorporate a fluorophore into the structure of a neurotransmitter finds activity-dependent heterogeneity in dopamine release at individual synapses ...

There are two types of removal: Re-uptake – the neurotransmitter is reabsorbed back into the presynaptic neuron and restored inside a vesicle ready to be used again. For example, noradrenaline.