Benadryl Allergy Children's 1mg/ml Oral Solution - 120ml

Is Benadryl Children's Oral Solution a Good Children's Antihistamine Liquid?

If your child suffers from hay fever, hives, or other allergic reactions, finding a medicine they'll actually take can feel like a challenge in itself. Benadryl Allergy Children's 1mg/ml Oral Solution is a sugar-free, non-drowsy liquid antihistamine designed specifically for children aged 2 years and over. It contains cetirizine hydrochloride — a well-established second-generation antihistamine — at a concentration of 1mg per ml, making it straightforward to measure an accurate dose. You can browse our full range of allergy and hay fever treatments if you're looking for options for the whole family.

At just £6.99 for a 120ml bottle, it offers a practical, pharmacist-recommended solution for managing seasonal and perennial allergic symptoms in children. The liquid format makes it particularly suitable for younger children who struggle to swallow tablets.

How Does Benadryl Children's Oral Solution Work in the Body?

Cetirizine hydrochloride works by selectively blocking peripheral H1 histamine receptors. When your child encounters an allergen — pollen, pet dander, dust mites — their immune system releases histamine, which triggers the familiar symptoms of sneezing, itching, watery eyes, and a runny nose. By blocking the receptor histamine binds to, cetirizine interrupts this chain reaction before symptoms take hold.

• Cetirizine is absorbed rapidly from the gastrointestinal tract after oral administration.
• Peak plasma concentration is typically reached within one hour.
• It has low sedative potential compared to first-generation antihistamines such as chlorphenamine.
• The effect can last up to 24 hours, though the paediatric dosing schedule is twice daily for younger children.

Who Should Use Benadryl Allergy Children's Oral Solution?

This children's antihistamine liquid is suitable for children aged 2 to 12 years who experience allergic symptoms. It is particularly useful during hay fever season, but it can also be used year-round for perennial allergic rhinitis or chronic urticaria (hives). Parents of children who cannot swallow tablets will find the liquid format especially convenient.

• Children aged 2–12 years with seasonal allergic rhinitis (hay fever)
• Children with perennial allergic rhinitis triggered by dust mites or pet dander
• Children experiencing urticaria (hives) or allergic skin reactions
• Children who require a sugar-free formulation due to dietary needs

How Does Benadryl Children's Solution Compare to Other Children's Antihistamines?

How Should You Store Benadryl Children's Oral Solution?

Store the bottle below 25°C, away from direct sunlight and heat sources. Keep it out of the reach and sight of children at all times — this is especially important given the liquid format. Once opened, check the product packaging for any in-use shelf-life guidance, as liquid medicines can degrade more quickly than tablets once the seal is broken.

If you're managing multiple health products for your child, our baby and toddler collection includes a range of age-appropriate health essentials. Always check the expiry date before each use and discard any unused medicine safely — your local pharmacy can advise on safe disposal.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

What Is Benadryl Allergy Children's Oral Solution and What Is It Used For?

Benadryl Allergy Children's 1mg/ml Oral Solution is an over-the-counter antihistamine medicine containing cetirizine hydrochloride. It is licensed for the symptomatic relief of allergic conditions in children aged 2 to 12 years, including seasonal allergic rhinitis (hay fever), perennial allergic rhinitis, and urticaria (hives). The NHS recognises cetirizine as one of the preferred non-drowsy antihistamines for managing these conditions in both adults and children.

What Do You Need to Know Before Using Benadryl Children's Oral Solution?

Before giving this medicine to your child, read the following carefully. There are certain situations where this product should not be used, or where extra caution is needed.

Do not use if your child:

• Is under 2 years of age
• Has a known allergy to cetirizine hydrochloride, hydroxyzine, or any other ingredient in the solution
• Has severe kidney disease (renal impairment)

Speak to a doctor or pharmacist first if your child:

• Has epilepsy or a history of seizures
• Has kidney problems (mild to moderate renal impairment may require dose adjustment)
• Has a condition affecting urination, such as spinal cord injury
• Is taking other medicines, particularly sedatives or medicines that affect the central nervous system

Potential drug interactions to be aware of:

• CNS depressants (e.g. sedatives, sleeping medicines) — may increase drowsiness
• Alcohol — should be avoided alongside antihistamine use
• Theophylline — may slightly reduce the clearance of cetirizine at high doses

How Should You Use Benadryl Allergy Children's Oral Solution?

Always follow the dosage instructions on the packaging or as directed by your pharmacist. Use the measuring device provided — never use a household spoon, as this can lead to inaccurate dosing.

1. Shake the bottle gently before use if instructed on the label.
2. Use the oral syringe or measuring cup provided to draw up the correct dose.
3. Administer the liquid directly into your child's mouth.
4. Give with or without food — cetirizine can be taken either way.
5. Record the time of each dose to avoid accidental double-dosing.

What Are the Possible Side Effects of Benadryl Children's Oral Solution?

Like all medicines, cetirizine can cause side effects, although not every child will experience them. The NHS advises that most side effects of second-generation antihistamines are mild and resolve on their own.

Common side effects (may affect up to 1 in 10 children):

• Drowsiness or fatigue
• Headache
• Dry mouth
• Dizziness

Less common side effects (may affect up to 1 in 100 children):

• Stomach pain or nausea
• Agitation or restlessness (particularly in younger children)
• Skin rash or itching
• Difficulty passing urine

Stop giving the medicine and seek medical advice immediately if your child develops signs of a serious allergic reaction, such as swelling of the face, lips, or throat, difficulty breathing, or a severe skin rash. You can find further guidance on managing allergic reactions on the NHS website. If you're also managing skin-related allergy symptoms, our skin care collection includes products that may help alongside antihistamine treatment.

How Should You Store Benadryl Children's Oral Solution?

• Store below 25°C in a cool, dry place
• Keep away from direct sunlight and heat
• Keep the bottle tightly closed when not in use
• Store out of the reach and sight of children
• Do not use after the expiry date printed on the bottle
• Do not dispose of medicines via wastewater or household waste — return unused medicine to your pharmacy

If you're looking for additional allergy support products for your child, our ear, nose and throat range includes nasal sprays and other treatments that can complement antihistamine therapy during hay fever season.