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product makes you feel drowsy, do not drive
or operate machinery. This may be worsened
by alcohol, sedatives or tranquilisers (used to
treat anxiety or sleep disorders).
■ As with all antihistamines, it is advisable to
avoid alcohol consumption when taking this
■ You should stop taking this product for 3 days
before undergoing a skin allergy test because
antihistamines can affect the results of the test.
This product contains lactose. If you have been
told by your doctor that you have an
intolerance to some sugars, contact your
doctor before taking this medicinal product.
This medicine is suitable for most adults and
children aged 12 years and over, but a few people
should not use it. If you are in any doubt, talk to
your doctor or pharmacist.
Do not take this medicine...
10 mg TABLETS
This medicine is used to relieve the symptoms of
hay fever and other allergic conditions such as
pet or dust allergies and skin reactions.
■ This medicine is for use by adults and children
aged 12 years and over.
■ A doctor must be contacted if symptoms worsen
or do not improve after 3 days
Read the leaflet carefully before use. Keep this
leaflet, you might need it again.
Benadryl Allergy One a Day 10 mg Tablets is a
medicine which is used to relieve the symptoms of
hay fever and other allergic conditions such as pet
or dust allergies. The tablets contain 10 mg
cetirizine dihydrochloride which is an antihistamine
that helps relieve allergy symptoms such as
sneezing, runny nose and watery eyes.
It can also be used to treat allergic skin reactions.
These include urticaria, also known as hives, where
the skin looks blotchy, with white raised wheals
(bumps) surrounded by redness.
This medicine is for use in adults and children aged
12 years and over.
Like all medicines, this medicine can cause side
effects, although not everybody gets them.
If you experience any of the following,
stop taking this medicine and seek
immediate medical help:
Sudden signs of allergy such as rash, itching
or hives on the skin, swelling of the face,
lips, tongue or other parts of the body,
shortness of breath, wheezing or trouble
Bruising or bleeding more easily than
If you experience any of the following,
stop taking this medicine and talk to your
Abnormal liver function tests
Loss of consciousness
If you are a patient with kidney problems,
please ask your doctor for advice; if necessary,
you will take a lower dose. The new dose will
be determined by your doctor. If you have
difficulty passing urine, you should ask your
doctor for advice.
This medicine is not recommended for children
aged under 12 years old.
If you are pregnant or breast-feeding
If you are pregnant or breast-feeding, think
you may be pregnant or are planning to
have a baby, ask your doctor or pharmacist
for advice before taking this medicine.
You should not take Benadryl Allergy One a
Day 10 mg Tablets during breast feeding
because cetirizine passes into breast milk.
Special warnings about this medicine
If you get any side effects, talk to your doctor,
pharmacist or nurse. This includes any possible
side effects not listed in this leaflet. You can also
report side effects directly via the Yellow Card
Scheme at: www.mhra.gov.uk/yellowcard
By reporting side effects you can help provide
more information on the safety of this medicine.
Common: affects 1 to 10 users in 100
■ Headache or dizziness
■ Drowsiness or tiredness
■ Dry mouth, sore throat
■ Upset stomach, abdominal pain, diarrhoea,
■ Runny nose
Children under 12 years old
Adults and children aged 12 years
Adults and children
aged 12 years and above
Take 1 tablet
once a day
Do not take more than 1 tablet in 24 hours.
If symptoms persist or worsen, stop use and
consult your doctor or pharmacist.
If anyone has too much
If anyone has too much contact a doctor or
your nearest Accident and Emergency
department (Casualty) taking this leaflet and
pack with you.
In most people this product does not cause
drowsiness. However, there are rare
exceptions and you should take care when
you use this product for the first time. If this
Reporting of side effects
Other effects which may occur include:
For oral use only.
Swallow with a glass of water.
Do not take more than the stated dose shown in
Uncommon: affects 1 to 10 users in 1,000
■ Feeling of general discomfort or uneasiness
■ Pins & needles
■ Rash or hives
■ Abdominal pain
Rarely: affects 1 to 10 users in 10,000
■ Aggression, depression
■ Weight gain
■ Dystonia/dyskinesia (movement disorders)
including tremor, muscle spasm and tics
Very rarely: affects less than 1 user in 10,000
■ Taste disorder
■ Blurred vision, eye movement disorder
■ Involuntary movement and/jerking of the
limbs, muscle spasms in the neck and
■ Difficult, painful or involuntary urination
■ Vertigo, increased appetite
■ Amnesia, memory impairment
■ Inability to pass urine
In very rare cases people have thought about
committing suicide and if you feel this way then
stop taking the tablets and see your doctor.
4 Possible side-effects
3 How to take this medicine
Warnings and precautions
If you forget to take a dose, take the next dose
when needed provided that you only take a
maximum of 1 tablet in 24 hours. Do not take
a double dose.
If you are an epileptic or at risk of
If this applies to you, talk to a doctor or
If you forget to take the medicine
Talk to your doctor or pharmacist
1 What the medicine is for
If you have ever had a bad reaction to
cetirizine dihydrochloride, to hydroxyzine
or piperazine derivatives or any other
ingredients of this medicine (See section 6).
If you have serious kidney problems.
5 Storing this medicine
Keep this medicine out of the sight and reach of
This medicine does not require any special storage
conditions. Do not use this medicine after the
expiry date stated on the carton and blister. The
expiry date refers to the last day of that month.
Do not throw away any medicines via wastewater
or household waste. Ask your pharmacist how to
throw away medicines you no longer use. These
measures will help protect the environment.
6 Further Information
What's in this medicine?
The active ingredient in Benadryl Allergy One a
Day 10 mg Tablets is: 10 mg Cetirizine
dihydrochloride in each tablet.
Other ingredients are: Microcrystalline cellulose,
lactose, colloidal anhydrous silica and magnesium
The film coating contains
hydroxypropylmethylcellulose (E464), titanium
dioxide (E171) and macrogol 400.
What the medicine looks like and
contents of the pack
Benadryl Allergy One a Day 10 mg Tablets are
white oblong film-coated tablets, with a break-line
and Y-Y logo available in packs of 7, 14 and 30.
Not all pack sizes may be marketed.
Product licence holder and manufacturer:
McNeil Products Ltd, Maidenhead, Berkshire,
SL6 3UG, UK.
This leaflet was revised May 2017.
Benadryl is a registered trade mark.
Job Bag No.
Benadryl One A Day Relief
211.6 x 148 mm
Main body text
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Source: Medicines and Healthcare Products Regulatory Agency
Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. This information has been compiled for use by healthcare practitioners and consumers in the United States. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist.