This article warns about the use of dabigatran (pradaxa) with certain statins:
medscape.com/viewarticle/87...
Apparently the effect of dabigatran is enhanced with lovastatin or simvastatin. The risk of major haemorrhage is increased by over 40%. This effect does not appear with other statins.
The problem with dabigatran is that there isn't a standard way to test its concentration (unlike warfarin). It was found in its trials that there were fewer strokes when its concentration was measured in a laboratory, but of course that would negate its main benefit of apparently not requiring testing. This was kept quiet at the time and caused quite a scandal when the details were finally released.