Take 120mgcymbalta & seroquel300XR for 8 mth been anxious all week, can seroquel dose be increased? So was on cymbalta for two months and when seroquel was added I got better, it was like a light switched on. Have been on this combo 8 months however anxiety has returned this week and have been prescribed .5mg xanax twice a day until I see my pdoc tuesday. Just wondering can seroquel dose be increased?