When you feel stuffy, it’s natural to expect a decongestant to help. But it might not always be the right choice.
This article will walk you through the types of decongestants and how they work. It will also help you understand the risks and side effects of using decongestants.
Uses
Decongestants work best for minor congestion from:
Allergies (hay fever) Viruses (colds, flu, etc. ) Other illnesses
They may not work as well for a bacterial infection. For that you need antibiotics. If you still have stuffiness after taking antibiotics, decongestants may help.
How Decongestants Work
You get stuffed up because of enlarged blood vessels in your nasal and airway membranes. These enlarged blood vessels make it hard to breathe and can trap mucus.
Decongestants narrow blood vessels. This lets mucus drain so you can breathe.
Types of Decongestants
Over-the-counter decongestants come in nasal sprays and in oral forms such as:
PillsTabletsCapsulesLiquids
Common decongestants include:
Sudafed (pseudoephedrine) Sudafed PE (phenylephrine) Afrin and other nasal sprays (oxymetazoline)
Combination products like Tylenol Sinus, Advil Cold & Sinus, and Aleve Cold & Sinus also contain pain relievers. These medicines may help with sinus headaches from congestion.
Nasal sprays work faster than oral decongestants. Don’t use them for longer than recommended, though. They can irritate your nasal passages and make congestion worse.
Always follow the dosage instructions on the label or from your healthcare provider.
You can use most decongestants three to four times a day. Extended-release versions are used once or twice a day.
Sudafed (Pseudoephedrine)
Sudafed and its active ingredient, pseudoephedrine, come in several forms:
Regular tablets12-hour and 24-hour extended-release tabletsLiquid solution
Generic pseudoephedrine is also included in many multi-drug cold and flu products.
Other brand-name drugs that contain pseudoephedrine include:
To buy pseudoephedrine, you must:
Ask for it at the pharmacy counterShow your photo ID
Know that there is a limit to how much you can purchase per day and month.
Contac ColdDrixoral Decongestant Non-DrowsyKid Kare DropsNasofedSudodrinSuphedrinUnifed
This drug also prevents ear problems from pressure changes. This can be helpful for those why fly or scuba dive.
Sudafed PE (Phenylephrine)
Sudafed PE and generic phenylephrine are available in different forms:
TabletLiquid cough medicineQuick-dissolve strip
Phenylephrine is also in many combination cold and flu products. Because it constricts blood vessels, it’s also used in some hemorrhoid treatments.
Other brand name products with phenylephrine include:
Actifed Cold and AllergyAdvil Congestion ReliefPediacare Children’s DecongestantSuphedrin PE
Sales of phenylephrine are not restricted, so you should be able to find it on the shelf with other cold and flu remedies.
Afrin Nasal Spray (Oxymetazoline)
Afrin and many other nasal sprays contain oxymetazoline. This drug is used for congestion and to relieve nasal discomfort from colds and seasonal allergies.
The dosing schedule is typically every 10 hours or every 12 hours.
Other sprays that contain oxymetazoline include:
Anefrin Nasal SprayDristan Nasal SprayMucinex Nasal SprayVicks Sinex Nasal SprayZicam Nasal Spray
It’s also used in many generic nasal sprays.
Warnings/Contraindications
Most people can safely use decongestants, but they aren’t for everyone. Don’t take decongestants if you have:
Circulation problems Diabetes Glaucoma Hypertension (high blood pressure) Heart disease Hyperthyroidism (overactive thyroid) Prostate problems Kidney disease Liver disease
Some products contain a decongestant and a painkiller. Check the label before taking these with any other drugs. This will help keep you from taking too much of any one medication.
Always tell your healthcare provider about all medications you take, including OTC drugs. This can help you avoid possibly dangerous side effects and drug interactions.
If you’re pregnant, trying to get pregnant, or breastfeeding, talk to your healthcare provider before taking decongestants.
Decongestant Side Effects
Decongestants may cause mild side effects. These include:
Nausea or vomitingNervousnessRestlessnessWeaknessHeadachesDry mouth
Side effects specific to nasal sprays include:
Burning, stinging, or dryness inside the nostrilsIncreased nasal dischargeSneezing
These more serious side effects are uncommon, but important to be aware of. If you experience any, report them to your healthcare provider immediately:
Anxiety Elevated blood pressure Changes in heart rate or rhythm Insomnia Tremors Severe dizziness or fainting Numbness or pain in hands or feet Hallucinations Seizures Psychosis Trouble urinating
Decongestants may also contribute to strokes and bleeding inside the skull.
Summary
Decongestants narrow the swollen blood vessels that cause congestion. They work best against stuffiness caused by allergies or viruses.
Decongestants come in many forms, including tablets, liquids, and nasal sprays. Always follow the dosage directions. When using multi-drug products, make sure you aren’t taking other drugs with the same ingredients.
Check with your healthcare provider about use in children, during pregnancy and breastfeeding, and with chronic conditions. Contact your healthcare provider if you have any severe side effects.
A Word From Verywell
Decongestants can help you get relief from your stuffed-up nose. Because oral decongestants can cause side effects like restlessness, they may not be a good choice to relieve congestion at bedtime.
Fortunately, there are other things you can do to help relieve congestion. Staying hydrated can help loosen mucus. Take a hot shower before bed, breathing in the steam, and sleep with your head slightly elevated.
