Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so. The amount of medicine that you take depends on the strength of the medicine.
Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses. Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing. Sudafed PE is different from regular Sudafed. Find out what this medication does and how it can help relieve your congestion and other symptoms.
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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. This is especially important if you will be giving cough and cold medications to a child. Nonprescription cough and cold combination products, including products that contain pseudoephedrine, can cause serious side effects or death in young children.
Do not give nonprescription pseudoephedrine products to children younger than 4 years of age. If you give these products to children years of age, use caution and follow the package directions carefully.
Do not give pseudoephedrine extended-release tablets to children younger than 12 years of age. If you are giving pseudoephedrine or a combination product that contains pseudoephedrine to a child, read the package label carefully to be sure that it is the right product for a child of that age. Do not give pseudoephedrine products that are made for adults to children.
Before you give a pseudoephedrine product to a child, check the package label to find out how much medication the child should receive. Give the dose that matches the child's age on the chart. Ask the child's doctor if you don't know how much medication to give the child. If you are taking the liquid, do not use a household spoon to measure your dose. Use the measuring spoon or cup that came with the medication or use a spoon made especially for measuring medication.
If your symptoms do not get better within 7 days or if you have a fever, stop taking pseudoephedrine and call your doctor. This medication is also sometimes used to prevent ear pain and blockage caused by pressure changes during air travel or underwater diving.
Talk to your doctor or pharmacist for more information. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information. Foods and drinks that contain large amounts of caffeine can make the side effects of pseudoephedrine worse. This medication is usually taken as needed. If your doctor has told you to take pseudoephedrine regularly, take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule.
Take the pseudoephedrine packet or leaflet inside it, plus any remaining medicine, with you. Like all medicines, pseudoephedrine can cause side effects, although not everyone gets them.
Talk to a pharmacist or doctor if any of these side effects bother you or will not go away:. In rare cases, it's possible to have a serious allergic reaction anaphylaxis to pseudoephedrine. Pseudoephedrine is not recommended in pregnancy because it can reduce the blood flow in the placenta and to the baby.
Pseudoephedrine is not recommended to take while you're breastfeeding. It passes into breast milk, but only in small amounts that are not harmful to the baby. Pseudoephedrine can reduce the amount of milk you make, especially if you have not been breastfeeding for long.
If you're taking pseudoephedrine mixed with other medicines, you must check with a pharmacist or doctor whether it's safe to breastfeed. Some medicines and pseudoephedrine interfere with each other and increase the chances of you having side effects.
Pseudoephedrine is sometimes mixed with painkillers, such as cough and cold remedies. Before taking any other medicines, check the label to see if they contain aspirin, paracetamol or ibuprofen. There's very little information about taking herbal remedies and supplements with pseudoephedrine. Tell a doctor or pharmacist if you're taking any other medicines, including herbal remedies, vitamins or supplements. Pseudoephedrine works by reducing the swelling of blood vessels in your nose.
This helps mucus and air flow more freely in the cavities in your nose sinuses , helping you to breathe more easily. Pseudoephedrine starts to work in 15 to 30 minutes, but you should feel a lot better after 30 to 60 minutes.
Pseudoephedrine can be taken for a few days, usually up to 5 to 7 days, for the short-term relief of a stuffy or blocked nose. Decongestants should only be used for a short time, usually less than 10 days. Only take pseudoephedrine for longer than 10 days if a doctor has said it's OK.
Pseudoephedrine works by narrowing the blood vessels in your nose, but it also narrows the blood vessels in other parts of your body. If you have any heart problems or you're worried about this, speak to a pharmacist or doctor about a different treatment. It's a good idea to limit food and drink containing caffeine such as coffee, tea, cola and chocolate.
Caffeine can increase your risk of side effects, like feeling more restless or shaky and increasing your heartbeat. Pseudoephedrine does not affect any type of regular contraception, including the combined pill or emergency contraception.
No, there's no evidence that pseudoephedrine affects fertility in men or women. Pseudoephedrine does not affect your ability to drive or ride a bike.
Page last reviewed: 22 August Next review due: 22 August
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