If you're pregnant, nursing, have serious health conditions, or take other medicines. if you develop an allergic reaction, a severe rash, or signs of unusual behavior, stop taking tamiflu and call your doctor immediately. children and adolescents in particular may be at an increased risk of seizures, confusion, or abnormal behavior. the most common side effects are mild to moderate nausea and vomiting. anti-flu? go antiviral with tamiflu. you do all this research then smash it into a tree. your insurance company raises your rates. maybe you should've done more research on them. for drivers wit...