How are antimuscarinic anticholinergics?

Block muscarinic receptors causing inhibition of all their functions, block salivary and sweat glands, with little or no effect on neuromuscular junctions/ ganglia, some anti-histamine/antidepressants can have antimuscarinic activity. Muscarinic receptors are found in autonomic effect organs like heart, smooth muscle, brain, and exocrine glands