Patient leaflet - Donepezil Hydrochloride 5 mg film-coated tablets
1. What Donepezil hydrochloride is and what it is used for
Donepezil hydrochloride (donepezil hydrochloride) belongs to a group of medicines called acetylcholinesterase inhibitors.
Donepezil increases the levels of a substance (acetylcholine) in the brain involved in memory function by slowing down the break down of acetylcholine. It is used to treat the symptoms of dementia in people diagnosed as having mild and moderately severe Alzheimer’s disease. The symptoms include increasing memory loss, confusion and behavioural changes. As a result, sufferers of Alzheimer’s disease find it more and more difficult to carry out their normal daily activities.
Donepezil hydrochloride is for use in adult patients only.
2. What you need to know before you take Donepezil hydrochloride
Do not take Donepezil hydrochloride:
if you are allergic to donepezil
hydrochloride or to piperidine derivatives, or any of the other ingredients of this medicine (listed in section 6).
Warnings and precautions
Tell your doctor or pharmacist before taking Donepezil hydrochloride if you have or have had:
- stomach or duodenal ulcers
- seizures (fits) or convulsions
a heart condition (such as irregular
or very slow heart beat,heart failure, myocardial infarction)
a heart condition called ‘prolonged
QT interval’ or a history of certain abnormal heart rhythms called Torsade de Pointes or if anyone in your family have ‘prolonged QT interval’
low levels of magnesium or potassium
in your blood
- asthma or other long term lung disease
- liver problems or hepatitis
difficulty passing urine or mild kidney
disease
Also tell your doctor if you are pregnant or think you might be pregnant.
Children and adolescents
Donepezil hydrochloride is not
recommended for use in children and adolescents (younger than 18 years of age.
Other medicines and Donepezil hydrochloride
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. This includes medicines that your doctor has not prescribed for you but which you have bought yourself from a chemist/ pharmacist. It also applies to medicines you may take sometime in the future if you continue to take Donepezil hydrochloride. This is because these medicines may weaken or strengthen the effects of Donepezil hydrochloride.
In particular it is important to tell your doctor if you are taking any of the following types of medicines:
other Alzheimer’s disease medicines,
e.g. galantamine
pain killers or treatment for arthritis e.g.
aspirin, non-steroidal anti-inflammatory (NSAID) drugs such as ibuprofen, or diclofenac sodium
anticholinergics medicines, e.g.
tolterodine
- anticonvulsants e.g. phenytoin, carbamazepine
- medicines for heart rhythm problems e.g. amiodarone,sotalol
medicines for depression e.g.
citalopram, escitalopram, amitriptyline, fluoxetine
- medicines for psychosis e.g.pimozide, sertindole, ziprasidone
- medicines for bacterial infections e.g.clarithromycin,erythromycin, levofloxacin, moxifloxacin, rifampicin
anti-fungal medicines e.g.
ketoconazole
- muscle relaxants e.g. diazepam, succinylcholine
- general anaesthetic
medicines obtained without a
prescription e.g. herbal remedies.
medication for a heart condition e.g.
quinidine, beta-blockers (propranolol and atenolol)
If you are going to have an operation that requires you to have a general anaesthetic, you should tell your doctor and the anaesthetist that you are taking Donepezil hydrochloride. This is because your medicine may affect the amount of anaesthetic needed.
Donepezil hydrochloride can be used in patients with kidney disease or mild to moderate liver disease. Tell your doctor first if you have kidney or liver disease. Patients with severe liver disease should not take Donepezil hydrochloride.
Tell your doctor or pharmacist the name of your caregiver. Your caregiver will help you to take your medicine as it is prescribed.
Donepezil hydrochloride with food and alcohol
Food will not influence the effect of Donepezil hydrochloride.
Donepezil hydrochloride should not be taken with alcohol because alcohol may change its effect.
Pregnancy and breast-feeding and fertility
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.
Donepezil hydrochloride should not be used while breastfeeding.
Driving and using machines
Alzheimer’s disease may impair your ability to drive or operate machinery and you must not perform these activities unless your doctor tells you that it is safe to do so.
Also, your medicine can cause tiredness, dizziness and muscle cramp. If you experience any of these effects you must not drive or operate machinery.
Donepezil hydrochloride contains lactose
Donepezil hydrochloride film-coated tablets contains lactose monohydrate. If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicinal product.
3. How to take Donepezil hydrochloride
Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure.
How much Donepezil hydrochloride should you take?
Initially, the recommended dose is 5 mg (one white tablet) every night. After one month, your doctor may tell you to take 10 mg (one yellow tablet) every night before you go to bed.
If you experience abnormal dreams, nightmares or difficulty in sleeping (see section 4) your doctor may advise you to take Donepezil hydrochloride in the morning.
The tablet strength you will take may change depending on the length of time you have been taking the medicine and on what your doctor recommends. The maximum recommended dose is 10 mg each night. Do not alter the dose yourself without your doctor’s advice.
If you take more Donepezil hydrochloride than you should
Contact your doctor or the nearest hospital emergency department immediately if you take more of Package leaflet: Information for the user
Donepezil hydrochloride 5 mg film-coated tablets Donepezil hydrochloride 10 mg film-coated tablets
Donepezil Hydrochloride
Black A/s: 135 x 450 mm
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Donepezil Hydrochloride Leaflet P1540109
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135 x 450 mm
the medicine than you should. Take this leaflet and any remaining tablets with you.
Symptoms of overdosing include feeling and being sick, drooling, sweating, slow heart rate, low blood pressure (light-headedness or dizziness when standing),
breathing problems, losing consciousness and seizures (fits) or convulsions.
If you forget to take Donepezil hydrochloride
If you forget to take a tablet, just take one tablet the following day at the usual time. Do not take a double dose to make up for a forgotten dose.
If you forget to take your medicine for more than one week, call your doctor before taking any more medicine.
If you stop taking Donepezil hydrochloride
Do not stop taking the tablets unless told to do so by your doctor. If you stop taking Donepezil, the benefits of your treatment will gradually fade away.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
For how long should you take Donepezil hydrochloride
Your doctor or pharmacist will advise you on how long you should continue to take your tablets. You will need to see your doctor from time to time to review your treatment and assess your symptoms.
4. Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.
The following side effects have been reported by people taking Donepezil hydrochloride.
Tell your doctor if you have any of these effects while you are taking Donepezil hydrochloride.
Serious side effects:
You must tell your doctor immediately if you notice these serious side effects mentioned. You may need urgent medical treatment.
Muscle weakness, tenderness
or pain and particularly, if at the same time, you feel unwell, have a high temperature or have dark urine. They may be caused by an abnormal muscle breakdown which can be life threatening and lead to kidney problems (a condition called rhabdomyolysis).
liver damage e.g. hepatitis. The
symptoms of hepatitis are feeling or being sick, loss of appetite, feeling generally unwell, fever, itching, yellowing of the skin and eyes, and dark coloured urine (may affect up to 1 in 1,000 people).
stomach or duodenal ulcers. The
symptoms of ulcers are stomach pain and discomfort (indigestion) felt between the navel and the breast bone (may affect up to 1 in 100 people).
bleeding in the stomach or intestines.
This may cause you to pass black tar like stools or visible blood from the rectum (may affect up to 1 in 100 people).
seizures (fits) or convulsions (may
affect up to 1 in 10,000 people).
fever with muscle stiffness, sweating or
a lowered level of consciousness (a disorder called “Neuroleptic Malignant Syndrome”) (may affect up to 1 in 10,000 people)
fast, irregular heart beat and fainting,
which could be symptoms of a life-threatening condition known as Torsade de Pointes (frequency cannot be estimated from the available data)
Other side effects
Very common side effects (may affect more than 1 in 10 people):
- diarrhoea
- headaches
Common side effects (may affect up to 1 in 10 people):
- muscle cramp
- tiredness
- difficulty in sleeping (insomnia)
- the common cold
- loss of appetite
hallucinations (seeing or hearing things
that are not really there)
- unusual dreams including nightmares
- agitation
- aggressive behaviour
- fainting
- dizziness
- stomach feeling uncomfortable
- rash
- pain
accidents (patients may be more prone
to falls and accidental injury)
passing urine uncontrollably
Uncommon side effects (may affect up to 1 in 100 people):
- slow heart beat
- salivary hypersecretion
Rare side effects (may affect up to 1 in 1000 people):
- stiffness, shaking or uncontrollable movement especially of the face and tongue but also of the limbs
Not known (frequency cannot be estimated from the available data) Changes in the heart activity which can be seen on an electro-cardiogram (ECG) called ’prolonged QT interval’
libido increased, hypersexuality. Pisa syndrome (a condition involving involuntary muscle contraction with abnormal bending of the body and head to one side)
Reporting of side effects
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the national reporting system listed in Yellow Card Scheme Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.
5. How to store Donepezil hydrochloride
Keep this medicine out of the sight and reach of children.
Blister: Store in the original package in order to protect from moisture.
HDPE bottle: Keep the HDPE bottle tightly closed in order to protect from moisture. Do not use this medicine after the expiry date which is stated on the label, carton, and blister after EXP. 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. Contents of the pack and other information
What Donepezil hydrochloride contains
The active substance is donepezil hydrochloride.
5 mg: Each tablet contains 5 mg donepezil hydrochloride, equivalent to 4.56 mg donepezil.
10 mg: Each tablet contains 10 mg donepezil hydrochloride, equivalent to 9.12 mg donepezil.
The other ingredients are.
Tablet core: Lactose monohydrate, pregelatinized starch (maize starch), microcrystalline cellulose, low - substituted hydroxypropyl cellulose and magnesium stearate
Film coating: Hypromellose, macrogol
6000, talc, titanium dioxide (E171), iron oxide yellow (E172) (for only 10 mg)
What Donepezil hydrochloride looks like and contents of the pack
Film-coated tablet.
Donepezil hydrochloride 5 mg film coated tablets
White to off-white, circular, biconvex film-coated tablets debossed with ‘X’ on one side and ‘11’ on the other side
Donepezil hydrochloride 10 mg film coated tablets
Yellow coloured, circular, biconvex film-coated tablets debossed with ‘X’ on one side and ‘12’ on the other side.
Donepezil hydrochloride tablets are available in blister packs and HDPE bottle packs.
Pack sizes:
Blister pack: 14, 28, 50, 56 and 98 tablets HDPE bottle pack: 30, 250 and 1000 tablets.
Not all pack sizes may be
marketed.
Marketing Authorization Holder
Milpharm Limited
1 Roundwood Avenue
Stockley Park, Uxbridge
UB11 1AF
United Kingdom
Manufacturer
APL Swift Services (Malta) Limited HF26, Hal Far Industrial Estate, Hal Far Birzebbugia, BBG 3000
Malta
or
Milpharm Limited
1 Roundwood Avenue
Stockley Park, Uxbridge
UB11 1AF
United Kingdom
This leaflet was last revised in 10/2025.
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