Other types of social workers, such as those who work for hospitals, social advocacy organizations and the federal government, earned average wages of $26.07 per hour or $54,220 per year as of May 2011.
A MediGuard answered. Metformin can cause a loss of appetite, which is thought to be the cause of the weight loss in patients taking metformin. Metoformin is taken to help control blood glucose levels-it is FDA approved to treat diabetes and is mainly used for this condition.
Metformin can cause vitamin B12 deficiency in some people and this would decrease blood counts leading to fatigue (and generally difficulty with problem solving, periperal neuropathy, etc...) so the lab work would help identify cause.