Psychiatry Which of the following statements comparing serotonin-dopamine antagonists (SDAs) with dopamine receptor antagonists (DRAs) is true? A DRAs is first choice of treatment for schizophrenia. B SDAs produce more neurological adverse effects. C SDAs produce more extrapyramidal symptoms. D SDAs affect both serotonin and glutamate receptors. 💡 Explanation Which of the following statements comparing serotonin-dopamine antagonists (SDAs) with dopamine receptor antagonists (DRAs) is true? ✓ Correct Answer: D. SDAs affect both serotonin and glutamate receptors.