This video is a preparation guide for the drugs of allergy-histamines and antihistamines confining to autacoids. TIMELINE: 0:07 Histamines 1:11 Receptors 1:43 H1 antihistamines 2:28 Sseful drugs 2:36 Triple response 3:09 Parietal cells 3:29 Second-generation antagonist 4:09 Endogenous compounds (autacoids) 4:33 Antihistamines 5:12 Appetite stimulator 5:36 Mast cells-stabilizing effect 6:00 Medications for seasonal allergies 8:05 Conclusion