Mirtazapine is used as a medication.
 In contrast to the H1 receptor, mirtazapine has only low affinity for the muscarinic acetylcholine receptors, although anticholinergic side effects like dry mouth, constipation, and mydriasis are still sometimes seen in clinical practice
 Mirtazapine has no significant affinity for the 5-HT1A and 5-HT1B receptors

