Neurotransmitters Table

Neurotransmitter Type Derived From Clinical Relevance
GABA Amino acid Glutamate The most ubiquitous. Involved in sleep, anxiety reduction, muscle relaxation. Involved in relaxing effects of alcohol.
L-tryptophan (L-T) Amino acid Can only be obtained in the diet. Promotes sleep, especially when taken with a high carbohydate, low protien meal. Dangerous when consumed with MAO antidepressants.
Tyramine (Tyr) Amino acid Fats and carbohydates Dangerous when consumed with MAO antidepressants.
Glutamate (Glu) Amino acid Fats and carbohydates MSG reaction to Chinese food. The major excitatory amino acid. May be associated with neurotoxic effect in alcoholism.
Dopamine (DA) Biogenic amine Tyrosine, fats, and carbohydates Mania, schizophrenia, Parkinson’s diease, attention deficit disorder, substance abuse, tics, blood pressure regulation. Antipsychotics (major tranquilizers) inhibit DA action. Some antidepessants act here.
Norepinephrine (NE) Biogenic amine Dopamine Depression, anxiety, panic, blood pressure regulation. Necessary for learning and memory.
Serotonin (5-HT) Biogenic amine L-tryptophan Depression, mania, anxiety, blood pressure and temerature regulation. Many antidepressants, new antipsychotics, and nonadicting antianxiety agents act on these conditions via this neurotransmitter.