Do not use with other cough and cold drugs; a monoamine oxidase inhibitor (MAOI), a selective serotonin reuptake inhibitor (SSRI), or other drugs for depression, psychiatric, or emotional conditions, or Parkinson’s disease, or for 2 weeks after stopping the drug.
Ask a doctor or pharmacist before use if you have/are a chronic cough (as occurs with smoking), a cough with excessive mucus, difficulty breathing, other chronic lung disease (e.g. asthma or emphysema) (These could be signs of a serious condition), pregnant or breastfeeding, are taking medication for weight control, have any other serious medical condition.
Stop use and ask a doctor if symptoms worsen or last more than 7 days; a high fever, rash, persistent headache is present; you cough up thick yellow or green mucus.
Keep out of reach of children. In case of overdose, call a Poison Control Centre or doctor right away.