Synthetic antihistamines

This video tells us how synthetic histamine is used for treatment together with antihistamine receptors , interaction, and blocking histamine TIMELINE: 0:16 Introduction 1:09 Molecular model of histamine (structure) 2:20 Blocking histamine (allergy) 2:51 Antihistamine manufacture 3:06 Impacts 3:15 Histamine reaction in the stomach 3:30 Symathadine(antihistamine) 4:17 H2 receptors antihistamines 4:48 Conclusion