Robitussin A-C Oral
In Depth
- Uses and How to Use
- Dosage and Storage
- Precautions and Side Effects
- Drug Interactions
- Drug Images
Pronounced: (gweye-FEN-eh-sin/KO-deen)
Robitussin A-C Oral Uses
This combination medication is used to temporarily treat coughing and chest congestion symptoms caused by the common cold, flu, or other breathing illnesses (e.g., sinusitis, bronchitis). Guaifenesin is an expectorant that helps thin and loosen mucus in the lungs, making it easier to cough up the mucus. Codeine is a narcotic cough suppressant (antitussive) that affects a certain part of the brain, reducing the urge to cough.
This medication is not usually used for ongoing coughs from smoking, asthma, other long-term breathing problems (e.g., emphysema), or for coughs with a lot of mucus, unless directed by your doctor.
This medication is not recommended for use in children younger than 2 years.
How To Use Robitussin A-C Oral
Take this medication by mouth with or without food, usually every 4 to 6 hours as needed with a full glass of water (8 ounces or 240 milliliters) or as directed by your doctor. This medication can be taken with food if stomach upset occurs. Drink plenty of fluids while you are using this medication unless otherwise directed by your doctor. The fluid will help loosen the mucus in your lungs.
If you are using the liquid form, use a medication-measuring device to carefully measure the prescribed dose. Do not use a household spoon. If you are extremely drowsy after using this medication, consult your doctor or pharmacist promptly. Your dosage may need to be lowered.
This medication may cause dependence, especially if it has been used regularly for an extended time (more than a few weeks), or if it has been used in high doses. In such cases, if you suddenly stop this drug, withdrawal reactions may occur. Such reactions can include anxiety, restlessness, sweating, shaking chills, nausea, vomiting, and diarrhea. Report any such reactions to your doctor immediately. When stopping extended, regular treatment with this drug, gradually reducing the dosage as directed will help prevent withdrawal reactions. Consult your doctor or pharmacist for more details.
