From the manufacturer's website:
For frequent, persistent coughs, Robitussin Cough & Chest Congestion DM thins mucus to relieve chest congestion and gets your cough under control. Robitussin acts to suppress coughs and thin mucus so your cough is more productive, all with a non-drowsy formula that works even at the height of your cold. Provides soothing action, it suppresses cough plus it helps loosen phlegm and thins bronchial secretions to make cough more productive.
- Relieves cough due to minor throat and bronchial irritation
- Non-drowsy formula.
Warning: Do not use if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug. If you do not know if your prescription drug contains an MAOI, ask a doctor or pharmacist before taking this product. Ask a doctor before use if you have: cough that occurs with too much phlegm (mucus); cough that lasts or is chronic such as occurs with smoking, asthma, chronic bronchitis or emphysema. Stop use and ask a doctor if cough lasts more than 7 days, comes back, or is accompanied by fever, rash or persistent headache. These could be signs of a serious condition. If pregnant or breastfeeding, 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. Packaged with tamper-evident bottle cap. Do not use if breakable ring is separated or missing.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.
Recommended use: Do not take more than 6 doses in any 24 hour period. Measure only with dosing cup provided. Keep dosing cup with product. ml= milliliter. This adult product is not intended for use in children under 12 years of age. Adults and children 12 years and over: 20 ml every 4 hours. Children under 12 years: do not use. Store at 20-25 degrees C (68-77 degrees F). Do not refrigerate.