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; if you have an allergy to dextromethorphan or any of the listed ingredients/
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, difficult or pain when urinating, taking medication for weight control, any other serious medical condition.
Stop use and ask a doctor if symptoms worsen, last more than 7 days or are accompanied by a high fever (>38°C); a fever, rash, persistent headache or thick yellow or green mucus is present.
Keep out of reach of children. In case of overdose, call a Poison Control Centre or doctor right away.