Factors Affecting Drug Interactions

Factors Affecting Drug Interactions ( 10 Questions)

A patient has been prescribed two drugs with one being an agonist and another being a partial agonist at the same receptor. What will be their combined effect? 



Correct Answer: B

A partial agonist will decrease an agonist’s action by competing for binding at the same receptor and producing a submaximal response.

a. Increasing agonist’s action will not occur as a partial agonist will decrease an agonist’s action by competing for binding at the same receptor and producing a submaximal response. 

b. Decreasing agonist’s action will occur due to competition for binding at the same receptor by a partial agonist and producing a submaximal response. 

c. No change will not occur as a partial agonist will decrease an agonist’s action by competing for binding at the same receptor and producing a submaximal response. 

d. Increasing partial agonist’s action will not occur as a partial agonist will decrease an agonist’s action by competing for binding at the same receptor and producing a submaximal response.




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