Hi. I ve gone through your query and I can understand your anxiety. Finax 1mg is most commonly used to treat hairloss & prostate enlargement. As you are on it for hair loads for the past 6months, care must be taken. Several studies came up with the reports that finax 1mg intake for a longer duration affects the kidneys resulting in acute kidney injury . Other side effects includes depression, decreased ejaculation, difficulty in breathing, breast pain etc. Smoking result in diabetes, hypertension & also reduces the blood flow to kidneys, thereby affecting the kidneys. So I advice you to have a periodic check up of renal function by doing renal function test Hope I have answered your query. Let me know if I can assist you further. Take care. Regards, Dr. Yogapriya V, General and family physician.