Two days ago I forgot to take my effexor XR 150 mg. and lamictal in the morning. That same day at approx. 4pm, I was just cleaning and feeling fine. All of a sudden I got real dizzy and started vomiting, I started to sweat, fast heart beat, tingling in hands, legs and around the mouth, shaking and was very weak. My mom called the paramedics and they took me to E.R. and they gave me medication to stop vomiting. I have been on and off effexor for 20 yrs. and currently have been on these 2 drugs for approx. 4 years. I've never had this happen, nor do I remember if I was ever this late on a missed dose. The Dr. doesn't know what it was, he didn't think it was food poisoning because I didn't have diarrhea. Could this have been the result of being late on my meds? I am also on Vitorin, HCTZ, and Atenolol that was forgotten that day.