This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
When the drug binds to the receptor and causes action opposite to that of agonist is called as 
Select and explain. 
A. Complete agonist, B. Paial agonist, C. Inverse agonist, D. Neutral agonist
C: Inverse agonist
Answer: C: Inverse agonist 
Explanation: In pharmacology, an inverse agonist is a drug that binds to the same receptor as an agonist but induces a pharmacological response opposite to that of the agonist Ref-KDT 7/e p42