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Cipro, a brand name of the generic medication ciprofloxacin, is an antibiotic used to treat different types of bacterial infections. Cipro belongs to a class of antibiotics called fluoroquinolones. Cipro may cause serious changes in blood glucose levels, especially in patients with diabetes, according to Drugs.com. If you are a diabetic, you should consult the doctor before taking Cipro.

Not that I've ever heard.

The effect on blood sugar is temporary and not experienced by everyone. Once you are off cipro your blood sugars will return to normal.

I don't think so that cipro causes diabetes. But if you have diabetes and if you are taking cipro then you should consult your doctor.