Page last reviewed: 22 August Next review due: 22 August Pseudoephedrine including Sudafed On this page About pseudoephedrine Key facts Who can and cannot take pseudoephedrine How and when to take it Side effects How to cope with side effects Pregnancy and breastfeeding Cautions with other medicines Common questions.
About pseudoephedrine Pseudoephedrine is a decongestant that relieves a stuffy or blocked nose nasal congestion. This can happen when you have: a cold the flu allergies such as hay fever a sinus infection sinusitis You can buy pseudoephedrine from pharmacies and supermarkets.
It comes as tablets, capsules and a liquid that you swallow. Help us improve our website Can you answer a quick question about your visit today?
Pseudoephedrine usually starts to work in 15 to 30 minutes Common side effects include feeling sick, headaches, a dry mouth, a fast or irregular heartbeat, or increased blood pressure. It might also make you feel restless, nervous or shaky. Pseudoephedrine is also called by the brand names Sudafed or Galpseud Linctus.
Important Do not give pseudoephedrine to children under 6 years. Tell a pharmacist or doctor if you have: ever had an allergic reaction to pseudoephedrine or other medicines in the past high blood pressure hypertension heart disease taken medicines for depression known as monoamine oxidase inhibitors MAOIs in the last 2 weeks diabetes an overactive thyroid gland hyperthyroidism glaucoma increased pressure in the eye an enlarged prostate men with difficulty peeing or needing to pee often liver or kidney problems.
The usual dose depends on the medicine you're taking. Important If you have bought pseudoephedrine or any medicine containing pseudoephedrine from a pharmacy or supermarket, follow the instructions that come with the packet or ask a pharmacist for advice.
How to take it You can take pseudoephedrine tablets and liquid with or without food. What if I forget to take it? If you forget to take a dose, take the next dose when you need it. Always leave at least 4 hours between doses. Do not take a double dose to make up for a missed one. What if I take too much? Urgent advice: Call for advice now if:. Go to A serious allergic reaction is an emergency. These are not all the side effects of pseudoephedrine. For a full list, see the leaflet inside your medicine packet.
What to do about: feeling or being sick — try taking pseudoephedrine with or after a meal or snack. It may also help if you do not eat rich or spicy food. If you have been sick, drink plenty of water by having frequent sips to avoid dehydration.
Signs of dehydration include peeing less than usual or having strong-smelling pee. Do not drink too much alcohol. Ask a pharmacist to recommend a painkiller. If your headache does not go away, stop taking pseudoephedrine or see your doctor. It may be because pseudoephedrine can increase your blood pressure. Ask a pharmacist about trying a different medicine. Try not to watch television or use your mobile phone before going to bed.
Try to relax for an hour before bedtime. Pseudoephedrine and breastfeeding Pseudoephedrine is not recommended to take while you're breastfeeding. Non-urgent advice: Talk to a pharmacist or doctor if you're:. Many people consider nasal congestion to be one of the most bothersome allergy symptoms. Decongestants help relieve your congestion. Learn more about the ways you can treat a stuffy nose, or nasal congestion, at home, including tips on decongestants, humidifiers, and steam remedies. Sudafed PE is different from regular Sudafed.
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Learn more here. Mold is a type of fungus that grows in moist areas and can trigger allergic reactions. Mold allergies are generally not life threatening. Health Conditions Discover Plan Connect. Sudafed: What You Need to Know. About Sudafed. Side effects. Drug interactions. Prescription status and restrictions. Talk with your doctor.
Read this next. Decongestants to Treat Allergy Symptoms. You should not use this medicine if you are allergic to pseudoephedrine. Do not use pseudoephedrine if you have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur.
MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others. Ask a doctor or pharmacist if it is safe for you to use pseudoephedrine if you have other medical conditions, especially:.
Artificially sweetened liquid medicine may contain phenylalanine. Check the medication label if you have phenylketonuria PKU. It is not known whether pseudoephedrine will harm an unborn baby. Do not use this medicine without a doctor's advice if you are pregnant. It is not known whether pseudoephedrine passes into breast milk or if it could harm a nursing baby.
Do not use this medicine without a doctor's advice if you are breast-feeding a baby. Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat. This is not a complete list of side effects and others may occur.
Call your doctor for medical advice about side effects. Avoid taking this medication if you also take diet pills, caffeine pills, or other stimulants such as ADHD medications. Taking a stimulant together with a decongestant can increase your risk of unpleasant side effects. Ask a doctor or pharmacist before using any other cough or cold medicine.
Many combination medicines contain pseudoephedrine or another decongestant. Taking certain products together can cause you to get too much of this type of medicine. Use Pseudoephedrine Sudafed exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.
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