Which of the following is a common side effect of anticholinergics?

The correct choice highlights a common side effect associated with anticholinergic medications. Anticholinergics work by blocking the action of acetylcholine, a neurotransmitter involved in various bodily functions. The overall effect of this mechanism can lead to several typical side effects due to reduced secretions and muscle control.

Dry lips and blurred vision are both classic side effects of anticholinergics. Drying of mucosal surfaces is a well-known consequence of anticholinergic action, leading to symptoms such as dry mouth and lips, while blurred vision can occur due to pupillary dilation and paralysis of ciliary muscles responsible for lens accommodation.

Hyperpyrexia, an extremely high fever, is generally not a typical side effect of anticholinergics. In specific circumstances, certain medications could interplay with this condition, but it wouldn't be a common or direct response to anticholinergic medication.

Conversely, schizophrenia is not associated with anticholinergic medications and is a complex mental health disorder characterized by various symptoms, including delusions and hallucinations. Understanding the effects of medication is crucial for effective patient assessment and management.