Ask a doctor before use if you have persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis or emphysema, a cough accompanied by excessive phlegm (mucus).
Stop use and ask a doctor if new symptoms occur, symptoms get worse or last more than 7 days, cough lasts more than 7 days or occurs with rash or persistent headache. These could be signs of a serious condition.
If pregnant or breast-feeding, ask a healthcare professional before use. Keep out of reach of children. In case of accidental overdose, seek medical help or contact a Poison Control Center immediately.