Phenylephrine (Sudafed PE) is a decongestant used to treat nasal and sinus congestion from allergies and the common cold. It's available over the counter as tablets and a liquid solution. Phenylephrine (Sudafed PE) isn't a first-choice option for people who are pregnant or breastfeeding because there's a chance that it can affect the growing baby and the mother's milk supply. Side effects of phenylephrine (Sudafed PE) are typically mild and can include feeling anxious, headache, and nausea.
Short-term relief of nasal and sinus congestion and pressure
Phenylephrine (Sudafed PE) is a decongestant. It works by squeezing the blood vessels around your nose and sinuses, which helps to relieve congestion and pressure.
Source: DailyMed
Side effects that you should report to your care team as soon as possible:
Side effects that usually do not require medical attention (report to your care team if they continue or are bothersome):
Available as tablets and a liquid
Available over the counter
Available as a lower-cost generic medication
Tablets can't be taken by children younger than 12 years old
Can raise blood pressure and heart rate
Needs to be taken multiple times a day
Don't take phenylephrine (Sudafed PE) too close to bedtime because you might have a more difficulty falling asleep.
Phenylephrine (Sudafed PE) can raise your blood pressure. If you have heart problems or high blood pressure, ask your provider if it's safe for you to take phenylephrine (Sudafed PE).
It's best to avoid or limit caffeine while taking phenylephrine (Sudafed PE) because this combination can raise your risk for side effects (e.g., fast heart rate, high blood pressure, difficulty sleeping).
Stop taking phenylephrine (Sudafed PE) and contact your provider if you get nervous, dizzy, sleepless, or if your symptoms don't get better within 7 days, or occur with a fever. These might be signs of a more serious medical condition.
Tell your provider or pharmacist about all the medications you're taking to make sure phenylephrine (Sudafed PE) is safe for you. Don't start any new medications while taking phenylephrine (Sudafed PE), especially other decongestants.
Don't take phenylephrine (Sudafed PE) if you're taking or have taken a monoamine oxidase inhibitors (MAOIs), such as selegiline (Eldepryl) or phenelzine (Nardil), within the past 2 weeks. This combination can cause dangerous changes to your blood pressure. If you have taken an MAOI in the past 2 weeks, contact your provider for other options to treat your symptoms.
More tips for phenylephrine (Children's Sudafed PE) liquid only:
Make sure to only use a medication dose cup or syringe from the pharmacy to measure out your dose. Don't use household spoons because they aren't accurate and might cause you to take the wrong dose.
Store the liquid at room temperature in the original bottle it came in from the pharmacy.
Phenylephrine (Sudafed PE) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Risk factors: Heart problems | High blood pressure
Phenylephrine (Sudafed PE) can raise your heart rate and blood pressure, even at recommended doses. If you have a history of heart conditions or high blood pressure, ask your provider if phenylephrine (Sudafed PE) is safe for you before taking it. If you get severe headaches, nosebleeds, difficulty breathing, irregular heartbeat, or chest pain while taking phenylephrine (Sudafed PE), stop the medication and seek medical attention right away.
Phenylephrine (Sudafed PE) is a decongestant, which is in many other over-the-counter products. Taking more than one medication containing a decongestant can raise your risk for serious side effects, including high blood pressure, high heart rate, and headache. Tell your provider or pharmacist about the medications you take before starting phenylephrine (Sudafed PE) to make sure it's safe for you. Don't start any new medications while taking phenylephrine (Sudafed PE) without talking to your provider or pharmacist. To prevent an accidental overdose, read package labels carefully. If you're not sure if a product has a decongestant, ask your pharmacist. If you or your loved one experiences an accidental overdose, get medical help right away or contact a poison control center at 1-800-222-1222.
Risk factors: Heart problems | High blood pressure | Thyroid disease | Diabetes | Prostate problems
Don't take phenylephrine (Sudafed PE) if you have any of the risk factors listed above unless your provider said it is safe to do so. Taking phenylephrine (Sudafed PE) can worsen your condition(s) and cause serious side effects. Make sure your provider knows about all medical conditions you have or have had in the past before starting phenylephrine (Sudafed PE).
Dosage | Quantity | Price as low as | Price per unit |
---|---|---|---|
10mg | 36 tablets | $5.21 | $0.14 |
Phenylephrine (Sudafed PE) tablet
Age 12 years and up: The typical dose is 10 mg by mouth every 4 hours. Don't take more than 60 mg in a 24-hour period.
Age under 12 years: Ask your child's provider.
Phenylephrine (Children's Sudafed PE) liquid: Each 5 mL of solution contains 2.5 mg of phenylephrine.
Age 6 to 11 years: The typical dose is 5 mg by mouth every 4 hours. Don't take more than 30 mg in a 24-hour period.
Age 4 to 5 years: The typical dose is 2.5 mg by mouth every 4 hours. Don't take more than 15 mg in a 24-hour period.
Age under 4 years of age: Do not use.
Having taken a monoamine oxidase inhibitor (MAOI) medication within the last 2 weeks
Short-term relief of nasal and sinus congestion and pressure
Short-term relief of nasal and sinus congestion and pressure
Short-term relief of nasal and sinus congestion and pressure
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Atkinson, H. C., et al. (2015). Potential cardiovascular adverse events when phenylephrine is combined with paracetamol: simulation and narrative review. European Journal of Clinical Pharmacology.
CVS Pharmacy. (2023). NASAL DECONGESTANT PE, NON-DROWSY- phenylephrine hcl tablet, film coated [package insert]. DailyMed.
Drugs and Lactation Database (LactMed). (2018). Phenylephrine. National Institute of Child Health and Human Development.
Johnson & Johnson Consumer Inc. (2023). CHILDRENS SUDAFED PE NASAL DECONGESTANT- phenylephrine hydrochloride solution [package insert]. DailyMed.
Källén, B. A. J., et al. (2006). Use of oral decongestants during pregnancy and delivery outcome. American Journal of Obstetrics & Gynecology.
Kanfer, I., et al. (1993). Pharmacokinetics of oral decongestants. Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy.
U.S. Food and Drug Administration. (2017). Legal requirements for the sale and purchase of drug products containing pseudoephedrine, ephedrine, and phenylpropanolamine.
Yau, W., et al. (2013). Use of decongestants during pregnancy and the risk of birth defects. American Journal of Epidemiology.
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