Cheratussin AC is used for treatment of cough and chest congestion from the common cold, flu or other breathing issues. Side effects, such as nausea, vomiting, dizziness and lightheadedness, may occur. Report serious side effects, such as mental or mood changes, trouble urinating, irregular heartbeat or seizures, to a doctor, states WebMD.
Cheratussin AC is a combination medication made from codeine and guaifenesin. Codeine is a narcotic affecting the brain and reduces the urge to cough. Guaifenesin is an expectorant that loosens the mucus in the lung for removal in the sputum, according to WebMD.
Use precaution when administering medication to children. Cheratussin is not recommended for children under the age of 6, and some medications are not recommended for children younger than 12 years. Consult with a physician for treatment options and avoid using Cheratussin to make children sleepy, explains WebMD.
Not following the specific instructions may pose serious or fatal side effects, such as slowed breathing, stopped breathing or death. If Cheratussin is used for longer than a week, withdrawal symptoms, such as diarrhea, anxiety, restlessness, sweating, nausea, vomiting, shaking and chills, may occur. Addiction is possible with this product, so be careful not to take more doses than recommended to lessen the possibility of overdose and addiction, notes WebMD.