Which of the following is not an indication for cholinergic agents?

Cholinergic agents work by stimulating the parasympathetic nervous system, which has various therapeutic applications. They are typically used to treat conditions like glaucoma by causing pupil constriction, which helps reduce intraocular pressure. They can also enhance gastrointestinal (GI) activity, aiding in digestion and movement through the intestines, making them beneficial in treating motility disorders.

In the context of controlling vomiting, cholinergic agents can sometimes be used, but their primary role is not specifically as an antiemetic.

The indication that stands out as incorrect is enhancing heart rate. Cholinergic agents typically cause a decrease in heart rate (bradycardia) as they activate the parasympathetic response, which is at odds with the need to increase heart rate. Therefore, this makes the statement about enhancing heart rate incorrect in relation to the uses of cholinergic agents.