Pharmacology and the Nursing Process by Linda Lane Lilley: Practice Exam 2026 - Free Pharmacology Practice Questions and Study Guide

If anticholinergic bronchodilators are taken with antihypertensive drugs or beta agonists, there should not be any additive toxicity due to the different mechanisms of action. Corticosteroids are not known to interact with anticholinergic bronchodilators either. However, taking anticholinergic bronchodilators with other anticholinergic drugs can result in additive toxicity and increase the risk of side effects. This is because both drugs have similar effects on the body, such as reducing saliva production and causing dry mouth, which can lead to difficulties in swallowing and breathing. Therefore, it is important to avoid taking anticholinergic bronchodilators with other anticholinergic drugs to prevent possible additive toxicity.