Once your provider determines that the dose is right for you, it is recommend to schedule a visit once every three months
Hypoglycemia: Hypoglycemia does not occur in patients receiving metformin alone under usual circumstances of use, but could occur when caloric intake is deficient, when strenuous exercise is not compensated by caloric supplementation, or during concomitant use with other glucose-lowering agents (such as sulfonylureas and insulin) or ethanol
It also promotes healthy systemic metabolic outcomes within the gut lining
Drug Discov Today 19:869881 Polson AG, Ho WY, Ramakrishnan V (2011) Investigational antibody-drug conjugates for hematological malignancies
If you hit an optimal dose where your weight loss is steady, your energy is high, and side effects are minimal, remaining at that strength indefinitely is a perfectly appropriate long-term strategy