effects of antihypertensives in people with diabetes

What are the effects of antihypertensives in people with diabetes?

Beneficial		Angiotensin-converting enzyme inhibitors Diuretics
Likely to be beneficial		Angiotensin II receptor antagonists (reduce cardiovascular events compared with beta-blockers) Beta-blockers (similar reduction in cardiovascular and microvascular events to angiotensin-converting enzyme inhibitors, but may cause weight gain and increase the need for glucose-lowering therapy) Calcium channel blockers (similar reduction in cardiovascular events to diuretics but less effective than angiotensin-converting enzyme inhibitors)
Unknown effectiveness		Alpha-blockers