It is used to treat many conditions, such as headache, muscle aches, arthritis, backache, toothaches, colds, and fevers. Dextromethorphan is a cough suppressant. It suppresses an area in your brain that causes you to cough. Guaifenesin is an expectorant. It is used to help you breathe more easily.
Pseudoephedrine is a decongestant.
Do not take this medication without first talking to your doctor if you drink more than three alcoholic beverages per day or if you have had alcoholic liver disease. You may not be able to take acetaminophen. A very serious drug interaction could occur, leading to serious side effects. This medication can pass into breast milk and may harm a nursing baby. Do not take this medication without first talking to your doctor if you are breast-feeding a baby.