INS and diabetes mellitus: On the other hand, studies have been conducted on patients with arterial hypertension with or without diabetes mellitus or metabolic syndrome to assess the effects of non-selective β blockers (propranolol, atenolol, metoprolol) and selective β1 blockers or vasodilating β blockers (dilevalol, carvedilol, celiprolol, nebivolol) on insulin sensitivity.