I am a 22 year old male, height 59, weight 160.  A few weeks ago I I got my blood work done and my AST was 45.  Two weeks later I had it done again and it was 54.  What could be the cause of this? I sit possible it was just mildly elevated in isolated incidents those times?  I take propecia, could that be the cause.  Im having it taken again in a month, should I be worried?
Hi!welcome to Chat Doctor! Propecia that is basically Finasteride has no side effect on liver, but it is metabolized mainly by the liver, and caution has to be used in patients with liver dysfunction. If you have no liver disease then you don't need to worry, Your values are mildly elevated at borderline high, repeat after 2 weeks if value rises further then may be other tests to assess liver function may be required. Hope this helps. Take care!