Brief answer....worsening of your symptoms are due to sudden withdrwal of LORTAB as well as SEROQUEL. Detailed answer.... Hello, Thanks for the query. Withdrwal of LORTAB results in nausea,vomiting,diarrhea,agitation,running nose etc and similarly withdrwal of SEROQUEL results in nausea,vomiting,lightheadedness,tachycardia,headache,anxiety etc. Acute withdrawl of both the drugs together has compounded their side effects resulting in worsening of your flu symptoms. I would advise you to resume both the drugs LORTAB as well as SEROQUEL. If you ever want to discontinue these drugs in future,always do it very gradually and under the guidance of your doctor. I hope it helps,however you may revert to me for any further query. Best of luck Thanks

---