Which medication is classified as an anticholinergic?

Atropine is classified as an anticholinergic medication, which means it works by inhibiting the action of acetylcholine, a neurotransmitter that is involved in various functions like muscle contractions and the regulation of the autonomic nervous system. Anticholinergics are often used to increase heart rate, reduce salivation, and treat certain types of poisoning or overdose by blocking parasympathetic nervous system effects.

In clinical settings, atropine is commonly employed to manage bradycardia (abnormally slow heart rate) by increasing cardiac output, making it particularly valuable in emergency medicine. Additionally, it can be used to decrease secretions prior to surgery or in end-of-life care. Its impact on the central nervous system can also help in conditions where it is beneficial to reduce bronchial secretions or relieve spasms in the gastrointestinal tract.

While other medications listed have different mechanisms and uses, none fall under the classification of anticholinergic. This distinct category is critical for understanding how certain medications can impact various body systems, particularly in interventional radiology and other medical practices.