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Sinus Severe

Generic: Acetaminophen, Guaifenesin, And Phenylephrine Hydrochloride

OTC
Expectorant✓ FDA-verified
View full FDA label ↗
Sinus Severe is a medication that helps relieve symptoms from hay fever, other upper respiratory allergies, and the common cold, such as sinus congestion, pressure headaches, nasal congestion, and minor aches and pains. It works by loosening mucus and making coughs more productive, while also reducing fever. Adults and children aged 12 and over should take 2 caplets every 4 hours, but they should not take more than 10 caplets in a 24-hour period. A key warning is that it contains acetaminophen, which can cause severe liver damage if you take more than 4,000 mg in a day or if combined with other acetaminophen-containing products. If you are taking a prescription monoamine oxidase inhibitor (MAOI) for depression or other conditions, you should not use this medication.

Uses

  • sinus congestion. pressure headache. nasal congestion. minor aches and pains. hay fever. upper respiratory allergies. common cold.

Dosage

Adults and children 12 years and over take 2 caplets every 4 hours.
Do not take more than 10 caplets in 24 hours.
Children under 12 years should ask a doctor.
Swallow caplets whole; do not crush, chew, or dissolve.
Always follow your doctor's specific instructions for your dose.

Side effects

Common

NervousnessDizzinessSleeplessnessSkin reddeningBlistersRash
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Warnings

⚠ Important warnings

  • Do not exceed 10 caplets in 24 hours.
  • Severe liver damage may occur with over 4,000 mg of acetaminophen.
  • Do not use with other acetaminophen-containing drugs.
  • Ask a doctor if you have liver disease, heart disease, or high blood pressure.
  • Stop use if pain or cough worsens or lasts more than 7 days.

Drug interactions

  • Warfarinincreased bleeding riskCaution
  • Monoamine oxidase inhibitorsserious side effects possibleCaution

Ask about this product

Answers pulled from the FDA label only.

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Medical Disclaimer: This content is provided for informational and educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before taking any medication.
Data Source: Publicly available drug labeling information from the U.S. Food and Drug Administration (FDA).