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Artane 5mg Tablets/
Trihexyphenidyl 5mg Tablets
(Trihexyphenidyl hydrochloride)
Your medicine is known by any of the above names, but will be referred to as
Trihexyphenidyl Tablets throughout this leaflet. Product is also available in a
2mg strength.
Patient Information Leaflet

Taking other medicines
Please tell your doctor or pharmacist if you are taking or have recently taken
any other medicines, including medicines obtained without a prescription (like

Read all of this leaflet carefully before you start taking this medicine
• Keep this leaflet. You may need to read it again.
• If you have any further questions, ask your doctor or pharmacist.
• This medicine has been prescribed for you. Do not pass it on to others.
It may harm them, even if their symptoms are the same as yours.
• If any of the side-effects get serious, or if you notice any side-effects not
listed in this leaflet, please tell your doctor or pharmacist.

Take special care if you are taking any of the following:
• monoamine oxidase inhibitors (e.g. moclobemide, tranylcypromine) or
tricyclic antidepressants (e.g. amitriptyline) for the treatment of depression
• phenothiazines (e.g. chlorpromazine, thioridazine) or clozapine for the
treatment of mental illness
• antihistamines for the treatment of allergies
• disopyramide for the treatment of an irregular heartbeat
• levodopa for the treatment of Parkinson’s disease
• amantadine for viral infections
• nefopam, a painkiller
• metoclopramide or domperidone
• parasympathomimetics ( e.g. neostigmine, bethanechol) for the treatment of
urinary retention

In this leaflet
1) What Trihexyphenidyl Tablets are and what they are used for
2) Before you take Trihexyphenidyl Tablets
3) How to take Trihexyphenidyl Tablets
4) Possible side-effects
5) How to store Trihexyphenidyl Tablets
6) Further information

1) What Trihexyphenidyl Tablets are and what they are used for
The name of your medicine is Trihexyphenidyl Tablets.
Trihexyphenidyl is an antispasmodic (muscle relaxing) drug. Trihexyphenidyl
is used to treat Parkinson’s disease. Trihexyphenidyl helps patients with
Parkinson’s disease by improving muscle control and reducing stiffness so
that they can move more naturally. Trihexyphenidyl can also be used to treat
movement disorders (extreme restlessness, involuntary movements or
muscle spasms) which may be caused by certain drugs.

2) Before you take Trihexyphenidyl Tablets

Pregnancy and breast-feeding
Do not take this medicine if you are pregnant, planning to become pregnant,
or breast-feeding without consulting your doctor first.
Driving and using machines
Trihexyphenidyl can cause blurred vision or dizziness. Do not drive or operate
machinery if this happens to you.
Important Information about the ingredients of Trihexyphenidyl Tablets
This medicine contains starch. This is suitable for people with coelic disease.
Patients with wheat allergy (different from coelic disease) should not take this

Do not take Trihexyphenidyl Tablets if you:
• are allergic (hypersensitive) to trihexyphenidyl or any other ingredient in
the tablets (see section 6 – Further information for details)

3) How to take Trihexyphenidyl Tablets

Take special care with Trihexyphenidyl Tablets if you:
• have glaucoma
• have heart, liver or kidney disease or suffer from high blood pressure
• have prostate problems
• have trouble passing urine
• have a stomach ulcer or suffer from severe heartburn or acid indigestion or
any other digestive disorders
• suffer from a condition called myasthenia gravis
• suffer from tardive dyskinesia (unusual movements of the face and tongue)
• are elderly or under the age of 21

The dose of trihexyphenidyl varies from person to person depending on the
symptoms. You will normally start on a low dose and this may be increased
gradually by your doctor. The usual dose is between 5 - 15 mg per day (each
tablet contains either 2mg or 5mg). Some people may need less, especially if
they are also taking other medicines. Also, if you are over 65 years of age,
you may need less than the usual dose.

Always take Trihexyphenidyl Tablets exactly as your doctor has told you to.
The label on your medicine should also tell you. You should check with your
doctor or pharmacist if you are not sure.

Trihexyphenidyl tablets should be taken at meal times (just before or just
after a meal). If you are not sure how many tablets to take or when to take
them, ask your pharmacist. Trihexyphenidyl tablets should be swallowed
whole with a glass of water.

If you take more Trihexyphenidyl Tablets than you should
If you have taken an overdose of Trihexyphenidyl Tablets (that is more than
the doctor has told you to) get medical help immediately, either by calling
your doctor or going to the nearest hospital casualty department. Remember
to take the labelled medicine bottle with you, whether there are any
Trihexyphenidyl Tablets left or not.
If you forget to take Trihexyphenidyl Tablets
If you forget to take a tablet you should take it as soon as you remember.
However, if this is within 2 hours of your next dose you should skip the
missed tablet and carry on taking the rest of your tablets as usual.
Do not take a double dose to make up for the forgotten tablet.
If you stop taking Trihexyphenidyl Tablets
Do not stop taking this medicine suddenly as your symptoms may get worse.
If your dose needs to be lowered, your doctor will reduce the amount you
should take gradually.

4) Possible side effects
Like all medicines, trihexyphenidyl can cause side-effects although not
everybody gets them.
If you experience any of the following very rare side-effects, you should
contact your doctor immediately or go to your nearest casualty department:
• allergic reactions such as swelling of the eyelids, face or lips, skin rash
• difficulty breathing or tightness in the chest
• difficulty swallowing
If you experience any of the following rare side-effects, you should contact
your doctor as soon as possible:
• restlessness or agitation
• feelings of confusion or delusion (loss of reality)
• hallucinations
• difficulty in sleeping
• false sense of well-being
• immediate or short-term memory loss
• worsening of myasthenia gravis (very tired or weak muscles)
• large pupils and lack of near vision
• eye discomfort and increased sensitivity to light
• painful increased pressure in the eye
• faster heartbeat
• being sick
• reddening and dryness of skin or skin rashes
• inability to pass urine or difficulty passing urine
• thirst
• fever( raised body temperature)
However you should tell your doctor if any of the common side effects are
severe or become troublesome
• dryness of mouth (this can be approved by sucking pastilles)
• constipation
• blurring of vision or dizziness
• feeling sick or nervous

If any of the side-effects get serious, or if you notice any side-effects not listed
in this leaflet, please tell your doctor or pharmacist
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 Trihexyphenidyl Tablets
• Keep out of the sight and reach of children.
• Do not take Trihexyphenidyl Tablets after the expiry date which is printed on
the pack. The expiry date refers to the last day of that month.
• Store between 15°C and 30°C. Protect from moisture.
• If your doctor decides to stop your medicine, you should return any unused
tablets to your pharmacist.
• Medicines should not be disposed of via wastewater or household waste.
Ask your pharmacist how to dispose of medicines no longer required. These
measures will help protect the environment.
• If the medicine becomes discoloured or shows any other signs of
deterioration, you should seek the advice of your pharmacist who will tell
you what to do.

6) Further information
What Trihexyphenidyl Tablets contain
The active substance in Trihexyphenidyl Tablets is trihexyphenidyl.
Each tablet contains 5mg trihexyphenidyl hydrochloride.
Other ingredients are: calcium phosphate dibasic, maize starch and
magnesium stearate.
What Trihexyphenidyl Tablets look like and the contents of the pack
Trihexyphenidyl Tablets are round, white tablets with a break-line on one side
and plain on the other.
Each blister pack contains 25 tablets.
PL 10383/1840 Artane 5mg Tablets/Trihexyphenidyl 5mg Tablets POM
Who makes and repackages your medicine?
Your medicine is manufactured Teofarma S.r.l. Via F.lli Cervi, 8 27010 Valle
Salimbene (PV) - Italy Procured from within the EU and repackaged by
Product Licence Holder: Primecrown Ltd., 4/5 Northolt Trading Estate, Belvue
Road, Northolt, Middlesex, UB5 5QS.
Leaflet date: 18.05.2016

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.