Pseudoephedrine
Sudafed is a brand-name nasal decongestant used to temporarily relieve congestion in the nose and sinuses caused by the common cold, allergies, or hay fever. It contains pseudoephedrine, which works by narrowing blood vessels in the nasal passages to reduce swelling and congestion.
Sudafed is a nasal decongestant that relieves stuffy nose and sinus congestion from colds and allergies.
Key facts at a glance
- RxNorm
- 203302
- Generic
- Sudafed
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Temporary relief of nasal and sinus congestion due to common cold, allergic rhinitis, hay fever, and other respiratory allergies. Also used for congestion associated with sinusitis.
Contains pseudoephedrine, an alpha-adrenergic agonist that causes vasoconstriction (narrowing) of blood vessels in the nasal passages, reducing swelling and mucus production to allow for easier breathing.
May cause insomnia, nervousness, or elevated blood pressure. Should be avoided in patients with uncontrolled hypertension, heart disease, or thyroid disorders. Available behind the pharmacy counter due to regulations on pseudoephedrine. Consult a doctor before use if pregnant, breastfeeding, or taking other medications.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 9, 2026. · Read our editorial policy