I'm taking metformin for anti aging and also to help prevent metabolic syndrome from developing (i take antipsychotics for bipolar disorder). However, I read somewhere that metformin can have a negative effect on T levels. I'm at 321, am 31 years old, am on a host of meds and supplements for bipolar disorder, but have also been on Axiron standard dose for 6 weeks which hasn't TOUCHED my T levels (they've actually gone down 10 points). I'mw ondering if it might be metformin? Anyone have any experience?