Drug or chemical that affects or influences the ANS

Choose a single drug or chemical that affects or influences the ANS. Which ANS receptor does it affect? What is its autonomic effect on the body? You must specifically relate it to the ANS for credit! What is its clinical application? While this is discussed in your text, I encourage you to broaden your search and do additional research on your chosen drug/chemical. Keep in mind, your chosen topic must affect the Autonomic Nervous System, and your post must include specific information demonstrating your knowledge related to this!