My husband has to take 1mg blue xanax 3 times a day. Every 3 months he has to go for his recheck at the doctors office. He has what they call "White coat syndrome", thats getting anxious when going to a doctor, blood pressure rises and passes out. They told him to take 2, 1mg the night before and 2, 1mg the morning of his visit. He is out of his 1mg blue xanax. We found some of his old xanax all poured into a bottle, I found a light green one that was oval shapped impression was S 902. It says that this one was a 1mg also, but we are concerned, what is the difference in this one and the blue one. He doesn't want to OD, or take one that is timmed release. He is very funny about stuff like this. Please let me know if you have an answer for this. Thanks so much.