Discontinue if signs & symptoms of heart eg, rapid wt gain, edema, dyspnea, or heart disease develop; deterioration of cardiac status occurs; ALT levels remain >3x ULN. New onset or worsening diabetic macular edema w/ decreased visual acuity. Not to be used in patients w/ severe degree of heart failure (established NYHA Class III or IV); active bladder cancer. Not recommended in patients w/ symptomatic heart failure. Patients w/ prior history of, or at risk of bladder cancer; hypoglycemia. Increased risk of edema; bladder cancer; CHF in patients w/ previously known heart disease. Anemia; wt gain associated w/ fluid retention; haematuria, urinary incontinence, dysuria, back or abdominal pain. Decreased Hb & hematocrit. Evaluate serum ALT levels prior to initiation of therapy & periodically thereafter. Regular eye exam w/ ophthalmologist. Not recommended in patients w/ hepatic disorders or abnormal liver function. Higher incidence of bone fracture in females w/ type 2 DM. Premenopausal women should use adequate contraception. Not recommended in pregnancy & lactation. Childn or adolescents <18 yr.