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Memantine hydrochloride 10mg/ml Oral Solution
Memantine hydrochloride
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.

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 only. Do not pass it on to others. It may harm them, even if their signs of illness are
the same as yours.
If you get any side effects, talk to your doctor or pharmacist. This includes any side effects not listed in this leaflet.

What is in this leaflet:

What Memantine hydrochloride is and what it is used for
What you need to know before you take Memantine hydrochloride
How to take Memantine hydrochloride
Possible side effects
How to store Memantine hydrochloride
Contents of the pack and other information

Memantine hydrochloride contains the active substance memantine hydrochloride.
What is Memantine hydrochloride used for
Memantine hydrochloride is used to treat patients with moderate to severe Alzheimer’s disease in adults.
How Memantine hydrochloride works
Memantine hydrochloride belongs to a group of medicines known as anti-dementia medicines.
Memory loss in Alzheimer’s disease is due to a disturbance of message signals in the brain. The brain contains so-called
N-methyl-Daspartate (NMDA)-receptors that are involved in transmitting nerve signals important in learning and memory. Memantine
hydrochloride belongs to a group of medicines called NMDA-receptor antagonists. Memantine hydrochloride acts on these
NMDA-receptors improving the transmission of nerve signals and the memory.
Do not take Memantine hydrochloride if you are allergic (hypersensitive) to memantine hydrochloride or any of the other ingredients
of this medicine. (See section 6).
Warnings and precautions
Talk to your doctor or pharmacist before taking Memantine hydrochloride
• if you have a history of epileptic seizures
• if you have recently experienced a myocardial infarction (heart attack), or if you are suffering from congestive heart failure or
from uncontrolled hypertension (high blood pressure).
In these situations the treatment should be carefully supervised, and the clinical benefit of Memantine hydrochloride reassessed by
your doctor on a regular basis.
If you suffer from renal impairment (kidney problems), your doctor should closely monitor your kidney function and if necessary
adapt the memantine doses accordingly.
The use of medicinal products called amantadine (for the treatment of Parkinson´s disease), ketamine (a substance generally used as
an anaesthetic), dextromethorphan (generally used to treat cough) and other NMDA-antagonists at the same time should be avoided.
Children and adolesents
Memantine hydrochloride is not recommended for children and adolescents under the age of 18 years.
Other medicines and Memantine hydrochloride
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.
In particular, Memantine hydrochloride may change the effects of the following medicines and their dose may need to be adjusted by
your doctor:
• amantadine, ketamine, dextromethorphan
• dantrolene, baclofen
• cimetidine, ranitidine, procainamide, quinidine, quinine, nicotine
• hydrochlorothiazide (or any combination with hydrochlorothiazide)
• anticholinergics (substances generally used to treat movement disorders or intestinal cramps)
• anticonvulsants (substances used to prevent and relieve seizures)
• barbiturates (substances generally used to induce sleep)
• dopaminergic agonists ( substances such as L-dopa, bromocriptine)
• neuroleptics (substances used in the treatment of mental disorders)
• oral anticoagulants
If you go into hospital, let your doctor know that you are taking Memantine hydrochloride.
Memantine hydrochloride with food, drink and alcohol
You should inform your doctor if you have recently changed or intend to change your diet substantially (e.g. from normal diet to strict
vegetarian diet) or if you are suffering from states of renal tubulary acidosis (RTA, an excess of acid-forming substances in the blood
due to renal dysfunction (poor kidney function)) or severe infections of the urinary tract (structure that carries urine), as your doctor
may need to adjust the dose of your medicine.
Pregnancy, breast-feeding and fertility
If you are pregnant or breast feeding, think you may be pregnant or planning to have a baby, ask your doctor or pharmacist for advice
before taking this medicine.
The use of memantine in pregnant women is not recommended.
Women taking Memantine hydrochloride should not breast-feed.
Driving and using machines
Your doctor will tell you whether your illness allows you to drive and to use machines safely.
Also, Memantine hydrochloride may change your reactivity, making driving or operating machinery inappropriate.
Memantine hydrochloride contains Sorbitol
If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicinal
Your doctor will advise you.
Always take Memantine hydrochloride exactly as your doctor or pharmacist has told you. You should check with your doctor or
pharmacist if you are not sure.
(a)Pump pack of 5mg/pump actuation:
One pump actuation contains 5 mg memantine hydrochloride.
The recommended dose of Memantine hydrochloride for adults and elderly patients is four pump actuations, equivalent to 20 mg
once a day. In order to reduce the risk of side effects this dose is achieved gradually by the following daily treatment scheme:
week 1
week 2
week 3
week 4 and beyond

one downward pump (equivalent to 0.5 ml)
Two downward pumps (equivalent to 1ml)
Three downward pumps (equivalent to 1.5ml)
Four downward pumps (equivalent to 2ml)

The usual starting dose is one pump actuation once daily (1x 5 mg) for the first week. This dose is increased in the second week to
two pump actuations once daily (1 x 10 mg), and in the third week to three pump actuations once daily (1 x 15 mg). From the fourth
week the recommended dose is four pump actuations once daily (1x 20 mg).
(b)Dosing Pipette:
week 1
week 2
week 3
week 4 and beyond

0.5 ml
1 ml
1.5 ml
2 ml

The usual starting dose is 0.5 ml once daily (1x 5 mg) for the first week. This dose is increased in the second week to 1 ml once daily
(1 x 10 mg), and in the third week to 1.5 ml once daily (1 x 15 mg). From the fourth week the recommended dose is 2 ml once daily
(1x 20 mg).
Dosage in patients with impaired kidney function
If you have impaired kidney function, your doctor will decide upon a dose that suits your condition. In this case, monitoring of your
kidney function should be performed by your doctor at specified intervals.
Memantine hydrochloride should be administered orally once a day. To benefit from your medicine you should take it regularly every
day at the same time of the day. The solution should be taken with a little water. The solution can be taken with or without food.
For detailed instructions on the preparation and handling of the product see end of this leaflet.
Duration of treatment
Continue to take Memantine hydrochloride as long as it is of benefit to you. Your doctor should assess your treatment on a regular
If you take more Memantine hydrochloride than you should
In general, taking too much Memantine hydrochloride should not result in any harm to you. You may experience increased symptoms
as described in section 4. “Possible side effects”.
If you take a large overdose of Memantine hydrochloride, contact your doctor or get medical advice, as you may need medical
If you forget to take Memantine hydrochloride
If you find you have forgotten to take your dose of Memantine hydrochloride, wait and take your next dose at the usual time.
Do not take a double dose to make up for a forgotten dose.
If you stop taking Memantine hydrochloride
If you want to stop the treatment before finishing the course of treatment discuss with your doctor or pharmacist first.
If you have any further questions on the use of this product, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
In general, the observed side effects are mild to moderate.
Common (affects 1 to 10 users in 100):
Headache, sleepiness, constipation, elevated liver function tests, dizziness, balance disorders, shortness of breath, high blood
pressure and drug hypersensitivity
Uncommon (affects 1 to 10 users in 1,000):
Tiredness, fungal infections, confusion, hallucinations, vomiting, abnormal gait, heart failure and venous blood clotting (thrombosis/
Very Rare (affects less than 1 user in 10,000):
Not known (frequency cannot be estimated from the available data):
Inflammation of the pancreas, inflammation of the liver (hepatitis) and psychotic reactions
Alzheimer’s disease has been associated with depression, suicidal ideation and suicide. These events have been reported in patients
treated with Memantine hydrochloride.
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet.
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 Yellow Card Scheme at: By reporting side effects you can help
provide more information on the safety of this medicine.

Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the carton and the bottle label after EXP. The expiry date refers to the
last day of that month.
This medicinal product does not require any special storage conditions.
Once opened, the contents of the bottle should be used within 12 weeks.
If using the bottle with the mounted pump the bottle must be kept and transported in an upright position only.
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.
What Memantine hydrochloride contains
The active substance is memantine hydrochloride.
Pump: Each pump actuation (one downward pump) delivers 0.5 ml of solution containing 5 mg of memantine hydrochloride
equivalent to 4.16 mg memantine.
Dosing Pipette: 0.5 ml contains 5 mg of memantine hydrochloride equivalent to 4.16 mg of memantine.
Each ml of solution contains 10 mg of Memantine Hydrochoride.
The other ingredients are potassium sorbate E202, sorbitol E420 and purified water.
What Memantine hydrochloride looks like and contents of the pack
Memantine hydrochloride oral solution is presented as a clear, colourless to light yellowish solution.
Memantine hydrochloride oral solution is available in bottles of 50 ml, 100 ml or 10 x 50 ml.
A pump or dosing pipette is provided. The dosing pipette is printed in 0.5 ml graduations.
Not all pack sizes may be marketed.
Marketing Authorisation Holder and Manufacturer
Torrent Pharma (UK) Ltd.
Unit 4, Charlwood Court,
County Oak Way
West Sussex. RH11 7XA
United Kingdom
Telephone: (01293) 574180
Fax: (01293) 533003
This medicinal product is authorised in the Member States of the EEA under the following names:
DE Memantin Heumann 10mg/ml, Lösung zum Einnehmen
NL Memantin Torrent 10mg/ml, drank
RO Memantina Torrent 10 mg/ml, soluţie orală
EL Memantin Torrent 10 mg/ml, πόσιμου διαλύματος
LT Memantinas Torrent 10 mg/ml, geriamasis tirpalas
UK Memantine hydrochloride Torrent 10 mg/ml oral solution
This leaflet was last revised in 02/2014
Instruction for proper use of the pump
The solution must not be poured or pumped directly into the mouth from the bottle or pump.
Measure the dose onto a spoon or into a glass of water, using the pump.
Take the screw cap off the bottle:
The cap must be turned anticlockwise, unscrewed completely and removed (fig. 1).

Mounting the dosing pump on the bottle:
Take the dosing pump out of the plastic bag (fig. 2) and place it on top of the bottle. Slide the plastic dip tube carefully into the bottle.
Hold the dosing pump onto the neck of the bottle and screw it clockwise until it fits firmly (fig. 3). The dosing pump is only screwed
on once when starting the use, and should never be unscrewed.

How the dosing pump works:
The dosing pump head has two positions and is easy to turn:
-anticlockwise to unlock and
-clockwise to lock.
The dosing pump head should not be pushed down while in the locked position. The solution may only be dispensed in the unlocked
position. To unlock, turn the pump head in the direction of the arrow until it cannot be turned any further (about one eighth of a turn,
fig. 4).
The dosing pump is then ready for use.
Preparing the dosing pump:

When used for the first time, the dosing pump does not dispense the correct amount of oral solution. Therefore, the pump must be
prepared (primed) by pushing the dosing pump heads down completely five times in succession (fig 5.)

The solution thus dispensed is discarded. The next time the dosing pump head is pushed downwards completely (equivalent to one
pump actuation), it dispenses the correct dose (fig 6.)

Correct use of the dosing pump:
Hold a glass with a little water or a spoon below the nozzle. Push down the dosing pump head in a firm but calm and steady
manner-not too slowly (fig. 7, fig. 8).

The dosing pump head can then be released and is ready for the next pump compression.
The dosing pump must only be used with the Memantine hydrochloride solution in the bottle provided, not for other substances or
containers. If the pump does not function properly, consult your doctor or pharmacist. Lock the dosing pump after using Memantine
Instruction for proper use of the dosing pipette
Remove the cap from the bottle by turning it anti-clockwise. (fig. 1)

Insert the pipette into the bottle. While holding the bottom ring, pull the top ring up to the mark that corresponds to the number of
millilitres or milligrams you need to give. (fig 2)

Holding the bottom ring, remove the entire pipette from the bottle.
The solution must not be pipetted into the mouth directly from the bottle but should be dosed onto a spoon or into a glass of water
using the pipette.(fig 3)


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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.