were randomly assigned to receive one of three extended-release metformin treatment regimens (1,500 mg/day q.d., 1,500 mg/day twice daily, or 2,000 mg/day q.d.) or immediate-release metformin ...

Table 1. Ambulatory systolic and diastolic blood pressures before treatment (at the end of the placebo run-in period) and after treatment with either metformin (1500 mg/day) or placebo ...