The class of blood pressure medications StrictionD Review known as diuretics can also cause problems. Since many type 2 diabetics or pre-diabetics also have high blood pressure, finding the best drug to take that causes the least impact on blood sugar levels is crucial. If you are pre-diabetic, in a high risk category for type 2 diabetes, or already diagnosed with type 2, you should monitor your blood sugar levels carefully after starting any new blood pressure medication.
Certain beta blockers can actually lower blood sugar initially, but the danger for pre-diabetics is their body stops recognizing fluctuating blood sugar levels and can later fail to respond appropriately. These drugs can also interact negatively with the pancreas, preventing the release of insulin and causing abnormally high sugar levels. Large doses of niacin, a B vitamin, have been shown in individual cases to cause difficulty in blood sugar control... the direct cause is not known but there appears to be an increase in insulin resistance. However, normal daily doses are not considered to be problematic. Some cholesterol medications are also seen to have the same effect, so diabetics should use care and monitor closely when starting a new drug regimen.
Finally, some antipsychotic medications, (particularly drugs prescribed for severe conditions such as schizophrenia), are suspected of contributing to diabetes... this is bolstered by the fact that 15% of all schizophrenics have type 2 diabetes. If any of the above medications are used in combination with one or more of these other drugs, the chances of developing type 2 diabetes, or increasing the effects of type 2 diabetes, is possible. Of course, one of the signs would be hyperglycemia.