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Sudafed

Last reviewed on RxList: 8/20/2015
Sudafed Side Effects Center

Medical Editor: John P. Cunha, DO, FACOEP

Last reviewed on RxList 9/23/2016

Sudafed (pseudoephedrine HCI) is a decongestant prescribed for the temporary relief of nasal congestion due to the common cold, hay fever, and sinus congestion. Sudafed is available as a generic drug. Common side effects of Sudafed include:

  • nervousness,
  • restlessness or excitability (especially in children),
  • dizziness,
  • headache,
  • fear,
  • anxiety,
  • loss of appetite,
  • sleep problems (insomnia),
  • skin rash,
  • itching,
  • tremors,
  • hallucinations,
  • convulsions (seizures),
  • nausea,
  • vomiting, and
  • flushing (warmth, tingling, or redness under your skin).

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]). Tell your doctor if you are pregnant or plan to become pregnant while using Sudafed; it is unknown if Sudafed will harm a fetus. Sudafed passes into breast milk and may harm a nursing baby. Consult your doctor before breastfeeding.

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.

Sudafed Consumer Information

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.

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.

Read the entire detailed patient monograph for Sudafed (Pseudoephedrine)

Sudafed Professional Information
Related Resources for Sudafed

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