Theraflu (Novartis) contained Acetaminophen
(Paracetamol) (1000 mg), Chlorpheniramine
maleate (4 mg), Dextromethorphan
hydrobromide (30 mg), and Pseudoephedrine
hydrochloride (60 mg).
it is possible to have symptoms like high heart rate,sedation ,mouth dryness etc by using theraflu.
so if u develop symptoms like this u need to stop the drug and use other drug like cetrizine alone.