You can find this information if you look up adverse effects of Diltiazem and statins, or diltiazem and statins, or potentially fatal interactions between diltiazem and statins. Diltiazem is a generic of a certain calcium channel blockers. If you doctor has access to Lexi-comp online, he can look it up here under interactions. Its funny that when i was looking this u for you I found another report in Medscape. It seems that Atorvastatin significantly enhanced the oral exposure of diltiazem in rats (2007). This i didn't know, and i couldn't find any previous reports of this. But then again...no one ever checked!! Diltiazem works on the same pathway that grapefruit juice does. CYP 450 3A4.