We've been using ranexa for the last year and honestly I never heard of any contraindications with ranexa for diabetics or causing low blood counts. Here is information i found, sorry if you have this
Can Ranexa be used in patients with chronic angina who also have diabetes or heart failure?
There are no significant differences between patients with diabetes or heart failure and patients without diabetes or heart failure in terms of Ranexa pharmacokinetics, hemodynamic effects, or electrocardiographic effects. No dosage adjustment is required in patients with diabetes or heart failure.
info. There is mention of diabetes on the information but no change in their glucose levels.
http://www.ranexa.com/home.html