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warnings
Warnings Ask a doctor before use if you have: a persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema a cough that occurs with too much phlegm (mucus) Stop use and ask a doctor if: symptoms are accompanied by fever, rash, or persistent headache cough persists for more than 1 week or tends to recur A persistent cough may be a sign of a serious condition. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.