What is a common side effect associated with the use of anticholinergic agents?

Anticholinergic agents are known to block the action of the neurotransmitter acetylcholine in the nervous system, which can lead to various side effects due to their mechanism of action. One of the most common side effects associated with these agents is dry mouth, also referred to as xerostomia. This occurs because acetylcholine is responsible for stimulating saliva production in the salivary glands. When anticholinergic drugs inhibit this neurotransmitter, saliva production decreases, leading to feelings of dryness in the mouth. This side effect can be uncomfortable and impact a patient's quality of life, making it a noteworthy consideration in clinical settings when prescribing anticholinergic medications.