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Pregnancy, breast feeding and fertility
Talk to your doctor before taking Nytol
One-A-Night if you are pregnant, trying to
become pregnant, or breast feeding.

Driving and using machines

Not known (frequency cannot be estimated from the
available data)
• Allergic reactions (such as rash, shortness of breath
and swelling), blurred vision, palpitations (feeling
your heart beat) or irregular heartbeat.
• Muscle twitching, convulsions, headache or pins and
• Also nausea (feeling sick), vomiting (being sick),
thicker bronchial mucus and difficulty passing urine.

Reporting of side effects:
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:
By reporting side effects you can help provide more
information on the safety of this medicine.

5. How to store Nytol One-A-Night
Keep this medicine out of the sight and reach
of children.
Do not use this medicine after the expiry date (EXP)
stated on the pack.
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.
Store in a dry place.

6. Contents of the pack and other

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Do not drive or operate machinery.
Nytol One-A-Night is intended to produce
sleepiness or drowsiness soon after the dose is

Nytol One-A-Night contains lactose
If you have been told by your doctor that you have an
intolerance to some sugars, ask your doctor before
taking this medicine.

3. How to take Nytol One-A-Night
Always take this medicine exactly as described in this
leaflet or as your doctor or pharmacist has told you.
Check with your doctor or pharmacist if you are not sure.
The recommended dose for adults and children
aged 16 years and over: Swallow 1 tablet with
water 20 minutes before you go to bed.
Not to be used by children under 16 years.
Not to be used by the elderly with confusion.
• Do not take more than the recommended dose.
• Do not take extra tablets if you wake up in the
• Do not take for more than 2 weeks without
consulting a doctor.


If you take more Nytol One-A-Night than

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Do not drink alcohol while using Nytol One-A-Night.

• if you have ever had an allergic reaction to
diphenhydramine hydrochloride or any of the other
ingredients (listed in Section 6)
• if you have an obstruction in your stomach or gut (for
example, because of an ulcer).

Warnings and precautions

Talk to your doctor or pharmacist before taking
Nytol One-A-Night:

• if you have asthma, bronchitis or Chronic Obstructive
Pulmonary Disease (COPD)
• if you have narrow-angle glaucoma (a form of raised
pressure in the eye)
• if you have an enlarged prostate or urinary retention
• if you have moderate to severe liver or kidney disease
• if you have myasthenia gravis, epilepsy or seizure
• If your sleeping difficulties persist, talk to your doctor
or pharmacist.
• Nytol One-A-Night may get less effective if you use it

Other medicines and Nytol One-A-Night

Talk to your doctor or pharmacist before taking these
tablets if you are taking any prescribed medicines;
particularly tricyclic antidepressants, monoamine oxidase
inhibitors (MAOIs prescribed for depression) within the
last two weeks, atropine (used to dilate pupils of the
eyes) or medicines which make you drowsy. Avoid the
use of other antihistamines including those used on your
skin and in cold and cough medicines, while taking this

Nytol One-A-Night with food, drink and alcohol

Nytol One-A-Night is used to relieve temporary sleeping
The active ingredient is diphenhydramine hydrochloride,
an antihistamine that causes sleepiness or drowsiness.
Temporary difficulties in getting a good night’s sleep can
be caused by various problems such as stress, jet lag or
personal problems such as bereavement. In sleep
problems of this type, Nytol One-A-Night has been shown
to help sufferers to fall asleep faster, have a longer and
deeper sleep, and to wake up feeling rested in the
Do not take Nytol One-A-Night for more than 2 weeks
without consulting your doctor.

1. What Nytol One-A-Night is and what it is
used for
In this leaflet:

1.What Nytol One-A-Night is and what it is used for
2.What you need to know before you take
Nytol One-A-Night
3.How to take Nytol One-A-Night
4.Possible side effects
5.How to store Nytol One-A-Night
6.Contents of the pack and other information

Diphenhydramine Hydrochloride

Read all of this leaflet before you start taking this
medicine because it contains important information for
you. Always take this medicine exactly as described in this
leaflet or as your doctor or pharmacist has told you.
• Keep this leaflet, you may need to read it again.
• Ask your pharmacist if you need more
information or advice.
• If you get any side effects, talk to your doctor or
pharmacist. This includes any possible side effects
not listed in this leaflet. See section 4.
• You must talk to a doctor if you do not feel better
or if you feel worse.
mg Tablets

Do not take Nytol One-A-Night:
2. What you need to know before you take
Nytol One-A-Night


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What Nytol One-A-Night contains
you should
- The active substance: Each tablet contains
Contact your doctor or casualty department.
Diphenhydramine Hydrochloride 50 mg.
If you forget to take Nytol One-A-Night
The other ingredients are: Anhydrous lactose,
microcrystalline cellulose, maize starch, stearic acid
Do not take a double dose to make up for a forgotten
and silicon dioxide.
dose. Take the next dose at the usual time as described in
this leaflet.
What Nytol One-A-Night looks like and contents of
the pack
If you have any further questions on the use of this
Packs of Nytol One-A-Night contain 4, 8, 10, 16 or 20
medicine, ask your doctor or pharmacist.
tablets. Not all pack sizes may be marketed.
4. Possible side effects
Marketing authorisation holder is Omega Pharma Ltd.,
32 Vauxhall Bridge Road, London, SW1V 2SA, United
Kingdom and all enquiries should be sent to this address.
Wrafton Laboratories Ltd, Wrafton, Braunton, North
Devon, EX33 2DL, U.K.
This leaflet was last revised in July 2016.

Package leaflet: Information for the user


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Like all medicines, Nytol One-A-Night can have side
effects, although not everybody gets them.
Common (may affect up to 1 in 10 people)
• The most common side effects are: tiredness,
drowsiness, reduced attention, unsteadiness, dizziness
or a dry mouth.


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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.