I agree with Perna, and I was thinking along the same lines. You have shown regret and provided a letter from a professional that can say you were prescribed the drug and it has these known side effects.

The behavior of the other person is showing that she is alot more unstable IMO and she has even taken drastic measures to act out and harass and corner you. You, on the other hand have shown regret and have been honest and straight forward. How is "she" as a future psychologist going to advise a patient on something like this, when she is "acting out" and doing so improperly?

If this "review" board is going to handle this correctly, they will take all of these behaviors into consideration and not just the email itself. Even is "she" is bad mouthing you to piers and professors, that could be considered unacceptable by whomever is reviewing this problem. If this has been the only thing you have done and you have not made any "harassing" moves in addition to this towards her, then her taking this incident and making it into a huge deal could cause "her" to look more "unstable" and "questionable".

None of us can take back things we have said, we, being human are bound to make mistakes. All we can do is "learn" from whatever mistakes we make and move on and as I mentioned, this is something that you can learn from and use it to help any patient who may be struggling with something similar. And the possibility of you guiding a patient through something like this is great because of the field you have chosen.

You could also add that into how you feel about this entire situation as well. You can say that you are doing your best with honestly regretting your actions and following the procedure and being respectful and honest.