Should i be concerned if i took almost 10 beers yesterday while on accutane 40mg ? a few weeks ago my blood tests showed that my liver was normal.

Absolutely: Not because of the Accutane even though it it's not healthy to drink so much on this drug. However, anyone who drinks ten drinks in a day likely has a drinking issue.

For you as a person: You're proud of how you look, went to the extra effort and expense of getting the best possible acne medication, and have braved the unpleasant side-effects. You're to be commended. You've proved you're a winner. You don't need the alcohol -- life's far too rich and offers far too much else. Best wishes and keep up the good work.