Yes, and I find health professionals are not only ignorant of this, but couldn't care less when I point out that a drug they have prescribed for me risks raising my already elevated bg.
Quite recently I was started on Apixaban (one of the New Oral Anti-Coagulants) in order to reduce my risk of stroke (from non-symptomatic AF). When I read the Patient Info. leaflet and realised it was liable to raise my bg I immediately stopped taking it and asked to be changed onto Dabigatran, which works in a different way and doesn't (admit to) raising bg. The GP I talked to was not my usual one. She tried to be really authoritarian, saying, "We don't usually like to change people". Obviously the "we" did not include me! She then tried to insist that I go on taking Apixaban, as anti-coagulation was in her view more important than bg. I insisted that in my view, the certain harm of raised bg trumped the possible harm of not taking an anti-coagulant. To her credit, when she realised that there was no way she was going to be able to force me to take Apixaban, she bustled round and organised a prescription for Dabigatran. But if I had not been a well-informed and stubborn person, I would doubtless be taking Apixaban to this day.