Pharmacology A competitive antagonist is a substance that A Interacts with receptors and produces submaximal effect B Binds to the same receptor site and progressively inhibits the agonist response C Binds to the nonspecific sites of tissue D Binds to one receptor subtype as an agonist and to another as an antagonist 💡 Explanation A competitive antagonist is a substance that ✓ Correct Answer: B. Binds to the same receptor site and progressively inhibits the agonist response