Skip to Content

The originating document has been archived. We cannot confirm the completeness, accuracy and currency of the content.

Acetaminophen / codeine / guaifenesin / pseudoephedrine Side Effects

Applies to acetaminophen / codeine / guaifenesin / pseudoephedrine: tablets

Check with your doctor if any of these most COMMON side effects persist or become bothersome:

Constipation; dizziness; drowsiness; excitability; headache; irritability; light-headedness; nausea; sweating; trouble sleeping; vomiting; weakness.

Seek medical attention right away if any of these SEVERE side effects occur while taking acetaminophen / codeine / guaifenesin / pseudoephedrine:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, throat, or tongue); confusion; difficulty urinating or inability to urinate; fainting; fast, slow, or irregular heartbeat; fever, chills, or persistent sore throat; hallucinations; involuntary muscle movements; mental or mood changes (eg, anxiety, nervousness); persistent trouble sleeping; restlessness; seizures; severe or persistent dizziness, drowsiness, light-headedness, or headache; slow, difficult, or shallow breathing; symptoms of liver problems (eg, dark urine, loss of appetite, pale stools, stomach pain, yellowing of the skin or eyes); tremor; vision problems.

Not all side effects for acetaminophen / codeine / guaifenesin / pseudoephedrine may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.

More about acetaminophen/codeine/guaifenesin/pseudoephedrine

Related treatment guides

Hide