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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Psychological antagonist is found in
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The correct answer is  (Ref Katzung 12/e p20) Physiological antagonists are those drugs that produce opposite action by acting on different receptors. Adrenaline reverses the bronchoconstrictor action of histamine (. H1 receptors) by causing bronchodilation (through beta2 receptors). Therefore,these are physiological antagonists.