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Sudafed Side Effects Center
Pharmacy Editor: Eni Williams, Pharm.D., Ph.D.
Sudafed (pseudoephedrine HCI) is a medication that belongs to the drug class, decongestants. Sudafed is available as a generic drug, and is prescribed for the temporary relief of nasal congestion due to the common cold, hay fever, and sinus congestion. Common side effects of Sudafed include nervousness, restlessness, excitability, dizziness, headache, fear, anxiety, tremors, hallucinations, and convulsions (seizures).
Sudafed usual dose is one tablet every 12 hours. Sudafed drug interactions include monoamine oxidase inhibitors or MAOIs (for example, isocarboxazid [Marplan]), serotonin and norepinephrine reuptake inhibitors (for example, venlafaxine [Effexor]), bronchodilators (for example, albuterol [Proventil]), blood pressure medications (such as beta blockers [Atenolol]) and calcium channel blockers [for example, verapamil]). Sudafed may have adverse effects in the fetus and is excreted in breast milk.
Our Sudafed Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Sudafed in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop using pseudoephedrine and call your doctor at once if you have a serious side effect such as:
- fast, pounding, or uneven heartbeat;
- severe dizziness or anxiety;
- easy bruising or bleeding, unusual weakness, fever, chills, body aches, flu symptoms; or
- dangerously high blood pressure (severe headache, blurred vision, ringing in your ears, anxiety, confusion, chest pain, trouble breathing, uneven heart rate, seizure).
Less serious side effects may include:
- loss of appetite;
- warmth, tingling, or redness under your skin;
- feeling restless or excited (especially in children);
- sleep problems (insomnia); or
- skin rash or itching.
Read the entire detailed patient monograph for Sudafed (Pseudoephedrine) »
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Sudafed Overview - Patient Information: Side Effects
If your doctor has directed you to use this medication, remember that he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Stop taking this medication and tell your doctor immediately if any of these rare but very serious side effects occur: fast/irregular/pounding heartbeat, mental/mood changes (such as anxiety, confusion, restlessness), shaking (tremor), difficulty urinating.
A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Sudafed (Pseudoephedrine)»
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Sudafed FDA Prescribing Information: Side Effects
No information provided.
Read the entire FDA prescribing information for Sudafed (Pseudoephedrine) »
Additional Sudafed Information
Sudafed - User Reviews
Sudafed User Reviews
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