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PseudoephedrineOver the counter
Pronounced soo-doe-e-FED-rin
Brand names: Sudafed
Type: Decongestant · All Allergy Medicines
What Pseudoephedrine is used for
- Nasal and sinus congestion from colds
- Nasal congestion from allergies
◆ Kidney note
Cleared by the kidneys; lower amounts are used when kidney function is reduced.
Common side effects
- Nervousness
- Trouble sleeping
- Rapid heartbeat
- Raised blood pressure
- Dry mouth
Important cautions
- Can raise blood pressure and heart rate — people with heart disease, high blood pressure, or thyroid overactivity should ask first
- Kept behind the pharmacy counter with purchase limits because it can be misused to make illegal drugs
How it comes
Tablets, extended-release tablets, liquid. This guide lists forms only — it never lists strengths or doses.
Related medicines — Allergy Medicines
Please note: This page is a patient-education summary, not medical advice, and it deliberately contains no doses. Medicines affect everyone differently — always follow your own prescription and talk to your doctor or pharmacist before starting, stopping or changing any medicine.