The example for two histamine antagonists that have very different tissue specificities and function should be given. Concept Introduction: A drug is any chemical substance that can affects the way of our body works. Some drugs are classified as agonists whereas others are classified as antagonists. Agonists are able to activate the receptor and result in a maximal biological response. Antagonists bind to the receptors but do not activate them, this result in receptor blockage, inhibiting the binding of other agonists. Histamine is a biogenic amine found in many tissues, including mast cells, lymphocytes, neurons, basophils Histamine antagonists are the drugs which block the action of histamine at different receptor sites.

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Chapter 28, Problem 28.71AP

Interpretation Introduction

Interpretation:

The example for two histamine antagonists that have very different tissue specificities and function should be given.

Concept Introduction:

A drug is any chemical substance that can affects the way of our body works. Some drugs are classified as agonists whereas others are classified as antagonists.

Agonists are able to activate the receptor and result in a maximal biological response.

Antagonists bind to the receptors but do not activate them, this result in receptor blockage, inhibiting the binding of other agonists.

Histamine is a biogenic amine found in many tissues, including mast cells, lymphocytes, neurons, basophils

Histamine antagonists are the drugs which block the action of histamine at different receptor sites.

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