Open Question: Marijuana reacting with Citalopram (anti-anxiety/depressant)?

I was prescribed my anxiety and depression Citalopram a week ago. Prior to this, I have enjoyed a good herb occasionally rustic, but it caused panic in bad times. I would like to know if the alarm will stop, because I was in this anti-anxiety drug. I also have a lorazepram prescription to stop panic. If I have a pot smoking, and noted that this would not have any negative impact? ps lecture, please do not weed the negative effect on me. I can make their own decisions