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Select the Statement That Best Explains the Mechanism of Action

Question 12

Multiple Choice

Select the statement that best explains the mechanism of action of alendronate (Fosamax) ,pamidronate (Aredia) ,risedronate (Actonel) ,and zoledronate (Reclast) .


A) The nonnitrogen bisphosphonates are attracted to bone calcium and have greater resorption inhibition potency. These drugs [alendronate (Fosamax) , pamidronate (Aredia) , risedronate (Actonel) , and zoledronate (Reclast) ] compete with osteoclast ATP, causing the cells to die; thus, bone resorption decreases.
B) The nonnitrogen bisphosphonates [alendronate (Fosamax) , pamidronate (Aredia) , risedronate (Actonel) , and zoledronate (Reclast) ] compete with osteoclast ATP, causing the cells to die; thus, bone resorption decreases.
C) The nitrogen bisphosphonates are more readily attracted to bone calcium and have greater resorption inhibition potency. These drugs [alendronate (Fosamax) , pamidronate (Aredia) , risedronate (Actonel) , and zoledronate (Reclast) ] prevent protein synthesis in the osteoclast cell membrane by interrupting the HMG-CoA reductase pathway.
D) None of these are correct.

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