I have been taking Wellbutrin 150mg & Viibryd mg every morning for a few years. They are both blue. I get a three months supply & fill a separate bottle with 30 pills every month & store the rest.
Well when refilling my Viibryd, I filled it with Wellbutrin instead. Long story shorter... I unintentionally took two wellbutrin instead of one of each. Later on during the day my hand itched... even later I itched EVERYWHERE. I took two Benedryl at 8:30 but couldn't get to sleep until after midnight with very Vivid Weird dreams. Could the itching & dreaming be from the double dose of Wellbutrin & lack of Viibryd? A little confusion on my part - Could have happened a couple of days in a row.

I can only comment based on what I find when I google your question and many references state that an overdose of wellburtin can be serious. A call to your prescribing Dr. would be the wisest course to follow, unless you have serious symptoms in wich case you should go to the emergency room. But, your Dr.'s office (prescriber or your GP) should be able to quickly assess the situation and give you the best guidance.