Sudafed Decongestant Liquid – 100ml

Description

Sudafed Decongestant Liquid – 100ml

Sudafed Decongestant Liquid is used to relieve nasal congestion (a blocked nose) caused by colds, flu, hay fever, and catarrh — a build-up of mucus in the nose, throat, or chest. It contains pseudoephedrine, a well-established decongestant, to help you breathe more easily.

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How It Works

Pseudoephedrine works by narrowing the small blood vessels inside the lining of your nose and sinuses. When these blood vessels become swollen during a cold or allergic reaction, they cause that blocked, stuffy feeling — pseudoephedrine reduces this swelling so that air can pass through more freely.

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Directions for Use

Adults and children aged 12 years and over should take 10 ml (two 5 ml spoonfuls) up to four times a day. Leave at least four hours between doses. Do not take more than four doses in 24 hours. This medicine is not suitable for children under 12 years of age. Always read the patient information leaflet before use. If you are unsure about the correct dose, speak to your PillSorted pharmacist.

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Active Ingredients

• Pseudoephedrine hydrochloride 30 mg per 5 ml

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Possible Side Effects

• Difficulty sleeping (insomnia)
• Increased heart rate or palpitations
• Feeling nervous, anxious, or restless
• Headache
• Dry mouth
• Feeling sick (nausea)
• Increased blood pressure
• Skin rash or itching

If you experience any serious side effects, stop taking this medicine and seek medical advice immediately.

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Who Should Not Take This Medicine

• Children under 12 years of age
• People with high blood pressure (hypertension)
• People with heart disease or irregular heartbeat
• People with an overactive thyroid (hyperthyroidism)
• People with diabetes
• People with severe kidney or liver problems
• People taking monoamine oxidase inhibitors (MAOIs) or who have taken them in the last 14 days
• Anyone who is allergic to pseudoephedrine or any other ingredient in this product

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Interactions

Sudafed Decongestant Liquid may interact with several medicines, including monoamine oxidase inhibitors (MAOIs — used for depression), other decongestants, beta-blockers, antihypertensives (blood pressure medicines), tricyclic antidepressants, and other stimulant medicines. Taking it alongside other products containing pseudoephedrine or similar decongestants may increase the risk of side effects. Tell your PillSorted pharmacist or doctor about all medicines you are currently taking, including herbal remedies and supplements.

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Pregnancy and Breastfeeding

Pseudoephedrine is generally not recommended during pregnancy, particularly in the first trimester, as it may affect blood flow. It can also pass into breast milk and may affect a nursing baby. Speak to your doctor or PillSorted pharmacist before use if you are pregnant, trying to conceive, or breastfeeding.

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Alcohol

There is no specific interaction between pseudoephedrine and alcohol; however, drinking alcohol while you are unwell with a cold or flu is generally not advised as it may worsen dehydration and prolong recovery. If you have any concerns, speak to your PillSorted pharmacist.

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Driving and Operating Machinery

Sudafed Decongestant Liquid does not generally cause drowsiness, as pseudoephedrine is a stimulant. However, some people may experience dizziness, restlessness, or other effects that could affect their ability to drive or use machinery safely. If you feel affected in any way, do not drive or operate machinery.

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Storage

Store below 25°C in a dry place, away from direct sunlight and heat. Do not refrigerate. Keep out of sight and reach of children. Do not use after the expiry date shown on the packaging.

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Important Information

• This product is a medicine. Speak to your doctor or PillSorted pharmacist before taking this product if you have an underlying medical condition or are taking any other medication or complementary therapy.
• If symptoms worsen or persist, contact your doctor.
• If pregnant, trying to conceive or breastfeeding, seek medical advice before use.
• If you suffer from allergies, confirm suitability with your PillSorted pharmacist before use.
• Store out of sight and reach of children.
• Read the enclosed patient information leaflet carefully before use.
• Contact your GP where appropriate.

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Patient Information Leaflet

For the full Patient Information Leaflet (PIL) for this medicine, visit the electronic Medicines Compendium (EMC). For further information about this medicine, visit NHS.uk.

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This content has been medically reviewed and approved by Zeinab Ardeshir (GPhC 2075730), Superintendent Pharmacist at PillSorted (GPhC-registered online pharmacy 9011258). Last reviewed: February 2026.

Brand	SUDAFED