Hi, consultant wants me to start taking Diltiazem (a calcium channel blocker) as I proved to be vasoreactive to it during my last right heart catheterisation. I am concerned about the dose he wants me to work up to in a very short space of time...especially as it does NOT agree with the guidelines issued in 2015 by the ESC/ERS. He also wants me to continue taking the Sildenafil I am on (already at a larger dose than they recommend) despite the fact they say PAH specific drugs should be added if the patient does not respond to the calcium channel blocker therapy.
It would help if anyone can tell me what dose they are on, whether they take anything else, and how they responded to it initially. Thanks