Effects which may impact the system for generating very short or local hormones, histamine, prostaglandin, serotonin and effects of angiotensin antagonists to teach and give information about.

Circulation is usually not more than move to their effect on the systemic circulation or tissues, therefore, constitute a rapidly disintegrating or local hormones which may effect a very short period of histamine and anti-histamine drugs, prostaglandins, local structure and polypeptide hormones and antagonists of serotonin.