I went to the emergency room twice last month with tachycardia. I think the anxiety could have been due to health anxiety related to a spinal headache or a reaction to a z-pack, which I had never used before. On my second visit to the ER, they prescribed 50 mg of metoprolol tartrate twice per day. Now my doctor wants me to take an SSRI to help the anxiety. I tried 50 mg of Zoloft but had severe nausea and anxiety the first day and stopped it. Now my doctor has prescribed 10 mg. of Paxil but I am hesitant to take it since drug interaction warnings and my pharmacist say it could lower my blood pressure too much. I do not want to return to the emergency room or experience the bad side effects again. Any advice? Is it true that SSRIs and beta blockers are not a wise combination? Is there an SSRI that works well with metoprolol tartrate? I do not have a history of high blood pressure, but I do have a history of anxiety. I used Paxil in the past but stopped due to the numb feeling. I think I also had weight gain on the Paxil.