H1 agonist / antihistamines

This video is an elaboration of a receptor, its structural orientation and configuration together with its mode of action and its corresponding effects it produces on a system . TIMELINE: 0:08 Introduction 0:17 H1 antagonist 0:33 General structure 1:01 Aryl group (promethazine) 1:26 Nature of groups in structure 2:01 Carbon chain 2:30 Terminal nitrogen importance 3:02 Conclusion