I hope you will discuss it with the Doctor that prescribed you the Cinacalset, and perhaps your pharmacist.
From what I've read I worry that it may absorb and eliminate the medication you've worked so hard to get, while simultaneously raising your calcium and phosphorus which I believe you have gotten the Cinacalset to lower and reduce.
Im not a medical professional, and have no idea the credibility of the articles I've read; But, I stumbled across enugh to cause concern and curiosity on the matter.
I hope you do discuss it with professionals, and let me know what they tell you about it.