The most common side effects reported were headache (14%), upper respiratory tract infection (8%), stomach ache (7%), vomiting (4%), loss of appetite (4%), sleeplessness (4%), increased cough (4%), sore throat (4%), sinusitis (3%), and dizziness (2%). Other side effects are reduced stature, ticks, "zombie" demeanor, stomach aches, moodiness and death.
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sinus problems taking concerta 
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