Most anxiolytic medications have their greatest effect by influencing which neurotransmitter?
a. dopamine
b. epinephrine
c. gamma-aminobutyric acid
d. serotonin
C
Most anxiolytic medications have their greatest effect through influencing the gamma aminobutyric acid neurotransmitter (GABA). Benzodiazepines are believed to increase the effectiveness of GABA. In addition, barbiturates augment GABA, but in a different manner than benzodiazepines. Even alcohol is believed to have anxiolytic and sedative effects partially by enhancing GABA transmission.
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