Out of the following given choices;
a.phenothiazines and butyrophenones
b. tricyclics and MAOIs
c. nitrates and glucocorticoids
d. benzodiazepines and antihistamines
The answer is a. butyrophenones work by inhibiting dopamine-mediated neuro-transmitters hence altering the normal thought pattern of its patients. They are more anti-dopamine (and less anti-adrenergic, anti-histaminic and anti-cholinergic) than phenothiazine but work in the same pharmacological way.