Acamprosate Calcium 333 Mg Gastro-Resistant Tablets

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Document: leaflet MAH BRAND_PLPI 15814-1146 change


Campral® EC 333 mg gastro-resistant tablets / Acamprosate calcium 333 mg gastro-resistant tablets

(acamprosate calcium)

This medicine is known as one of the above names but will be referred to as Campral tablets throughout this leaflet. ‘EC’ stands for ‘Enteric coated’ which is a type of gastro-resistant tablet.

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 or nurse.

•    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 or nurse. This includes any possible side effects not listed in this leaflet. See section 4.

What is in this leaflet

1.    What Campral tablets are and what they are used for

2.    What you need to know before you take Campral tablets

3.    How to take Campral tablets

4.    Possible side effects

5.    How to store Campral tablets

6.    Contents of the pack and other information


Campral tablets are medicines which act on the central nervous system (the brain and the spinal cord).

Campral tablets help people who are dependent on alcohol to abstain from drinking alcoholic drinks. Campral tablets in combination with counselling will help you not to drink alcohol. It does this by acting on the chemical changes that have taken place in the brain during the years that you have been drinking alcohol. It does not prevent the harmful effects of continuous alcohol abuse.


Do not take Campral tablets:

•    if you have had an allergic reaction, skin rash, swelling of the face, wheezing or difficulty breathing after taking acamprosate (INN) calcium or any of the other ingredients of Campral tablets (see list of ingredients in section 6) in the past

•    if you are pregnant or breast-feeding

•    if you suffer from severe kidney disease

•    if you suffer from severe liver disease

Warnings and precautions

Tell your doctor or pharmacist before taking Campral tablets.

You should not be drinking when you start Campral tablets treatment. Campral tablets will be less effective if you keep drinking.

If you drink too much alcohol, your body system and in particular your nervous system adapt to the effects of alcohol. When you then suddenly stop drinking you may experience some unpleasant symptoms known as alcohol withdrawal syndrome, which can last up to two weeks.

You should take Campral tablets as soon as possible after the withdrawal period.

Because patients who suffer from alcohol dependence often also suffer from depression it is recommended that you be monitored for symptoms of depression.

This medicine is not recommended for children or elderly.

Other medicines and Campral tablets

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.

Campral tablets have often been given to patients together with other medicines that are used to treat alcohol withdrawal or maintain abstinence. So far, Campral tablets do not seem to interfere with the effects of other medicines, however if you are prescribed diuretics (water tablets) consult your doctor.

Campral tablets with alcohol

Drinking alcohol while taking Campral tablets do not make you feel sick, however do not drink alcohol at all during your treatment with Campral tablets. Even if you drink a small amount of alcohol you run the risk of making your treatment fail and you may end up drinking heavily again.

Pregnancy and breast-feeding

If you are pregnant, think you might be pregnant, or planning to become pregnant, you should not take Campral tablets without consulting your doctor first.

If you are breastfeeding, you should not take Campral tablets.

Driving and using machines

Campral tablets do not make you sleepy and therefore is not expected to affect your ability to drive or use machines.


Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure.

The recommended dose

If you weigh 60 kg or more:

The usual dose is 6 tablets a day: 2 tablets in the morning, 2 tablets at noon and 2 tablets in the evening with meals.

If you weigh less than 60 kg

The usual dose is 4 tablets a day: 2 in the morning, 1 at noon and 1 in the evening with meals.

Duration of treatment:

It is recommended that you keep taking Campral tablets for one year.

If you take more Campral tablets than you should

If you take too many tablets, call your doctor or hospital casualty department immediately. You may experience diarrhoea and have raised blood calcium levels.

If you forget to take Campral tablets

Do not take a double dose to make up for a forgotten dose.

If you forget to take a dose take it as soon as you remember it and then take the next dose at the right time.

If you stop taking Campral tablets

Talk to your doctor before you stop taking the tablets and follow their advice.

If you have any further questions on the use of this medicine, ask your doctor or pharmacist.


Like all medicines, this medicine can cause side effects, although not everybody gets them.

If you experience any of the following side effects with Campral tablets, STOP taking the tablets and contact your doctor immediately: A severe allergic reaction, such as angio-oedema (causing large raised marks on the skin and localised swelling, including the face and throat) or anaphylaxis (causing difficulty in breathing with rash, swelling, wheezing and feeling faint).

The following side-effects have been reported:

Very common: may affect more than 1 in 10 people

•    diarrhoea

Common: may affect up to 1 in 10 people

•    stomach ache

•    gas

•    feeling sick

•    vomiting

•    itchy or spotty skin rash

•    decreased sexual desire

•    impotence

•    frigidity

Uncommon: may affect up to 1 in 100 people

•    increased sexual desire

Not Known: frequency cannot be estimated from the available data

•    allergic reactions including hives, angio-oedema and anaphylaxis (see the beginning of this section)

•    blistering rash characterised by patches of skin filled with fluid Reporting of side effects

If you get any side effects, talk to your doctor or 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.


•    Keep out of the sight and reach of children.

•    Do not store above 25°C.

•    Do not use the medicine after the expiry date which is stated on the carton 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.

•    If your medicines become discoloured or show signs of any deterioration, you should seek advice of your pharmacist.


What Campral tablets contain

Each tablet contains 333 mg of acamprosate calcium.

The other ingredients are: crospovidone, microcrystalline cellulose, magnesium silicate, sodium starch glycolate, colloidal anhydrous silica, magnesium stearate, Eudragit L30D, talc and propylene glycol (inactive ingredients).

What Campral tablets look like and contents of the pack

Campral tablets are white, round, enteric coated tablets with 333 marked on one side and plain on the other side.

They are available in blister packs of 168 tablets.


PL No: 15814/1146

Campral tablets are manufactured by Merck Sante s.a.s., Semoy, France or Merck SL, Barcelona, Spain. Procured from within the EU and repackaged by the Product Licence holder: OPD Laboratories Ltd., Unit 6 Colonial Way, Watford, Herts WD24 4PR.

Leaflet revision and issue date (Ref.): 04.06.2015.

Campral is a registered trademark of Merck Sante.

To request a copy of this leaflet in Braille, large print or audio please call 01923 332 796.