Pharmacology When two different chemicals act on two different receptors and their response is opposite to each other on the same cell, this is called as: A Physiological antagonism B Chemical antagonism C Reversible antagonism D Competitive antagonism 💡 Explanation When two different chemicals act on two different receptors and their response is opposite to each other on the same cell, this is called as: ✓ Correct Answer: A. Physiological antagonism