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Active substance(s): DISULFIRAM

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Antabuse® 200mg tablets
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.

What Antabuse® is and what it is used for
Before you take
How to take
Possible side effects
How to store
Further information

What Antabuse® is and what it is used for
Disulfiram (Antabuse's active ingredient) is used as a supportive agent in the treatment of
alcoholism. When you drink alcohol it is changed in the body into acetaldehyde,
disulfiram blocks the enzyme which breaks down acetaldehyde. This leads to an
increased level of acetaldehyde in the blood causing unpleasant physical reactions.
Antabuse® is used in the treatment of people with drinking problems. If you are treated
with Antabuse® and drink alcohol you will experience unpleasant physical reactions,
which may stop you from drinking further alcohol.

Before you take

Do not take Antabuse® and tell your doctor if you have:

an allergy (hypersensitivity) to disulfiram or any of the other ingredients (see section 6)
severe heart disease or heart failure
high blood pressure
severe psychiatric or personality disorder
had a stroke.
recently consumed alcohol

Check with your doctor or pharmacist before taking Antabuse® if you have:

kidney, liver or lung disease
low blood pressure
brain damage

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. Especially:

warfarin (reduces blood clotting)
phenytoin and paraldehyde (to treat epilepsy)
theophylline (to treat asthma)
chlordiazepoxide and diazepam (to treat anxiety)
pethidine and morphine (painkillers)
amphetamines (stimulants)
pimozide, and chlorpromazine (to treat mental illnesses)
isoniazid metronidazole, rifampicin (to treat infections)
amitriptyline (to treat depression)

Other precautions
Certain foods, liquid medicines, remedies, tonics, toiletries, perfumes and sprays may contain enough
alcohol to cause an Antabuse®-alcohol reaction. Caution should also be exercised with low alcohol and
“non-alcoholic” or “alcohol-free” beers and wines, if enough is taken they may produce unpleasant

Pregnancy and breast-feeding
If you are pregnant, planning to become pregnant or are breast-feeding ask your doctor or pharmacist for
advice before taking this medicine.
The use of Antabuse® during the first 3 months of pregnancy or breast feeding is not advised and should
only be used if directed by your doctor.

Driving and using machines
Antabuse® tablets may cause drowsiness or tiredness (see ‘4. Possible side effects’). If you are affected do
not drive or operate machinery.

Sugar intolerance
If you have been told you have an intolerance to some sugars, contact your doctor before taking this
medicine, as it contains a type of sugar called lactose.

If you drink alcohol during or within 2 weeks of stopping Antabuse®, or you have been exposed to alcohol
from other sources (see ‘Other precautions’) an Antabuse®-alcohol reaction may occur. The reaction is
unpredictable and symptoms may be severe or life threatening. Symptoms include;
flushing of the face and neck, increased body temperature, sweating, feeling or being sick, itchy skin or
rash caused by an allergic reaction (pruritis, urticaria) anxiety, dizziness, headache, blurred vision,
difficulty breathing, palpitations, rapid breathing.
In severe cases; rapid heart beat, low blood pressure, abnormally slow breathing, chest pain, abnormal heart
rhythm, coma or fits may occur.
Rare complications may include; high blood pressure, breathing problems, blood disorders.
If you get some of the symptoms, contact your doctor.
The Antabuse®-alcohol reaction can occur within 15 minutes after drinking alcohol and may last several


How to take

Always take Antabuse® exactly as your doctor has told you. If you are not sure, check with your doctor or
pharmacist. A check up is advised before starting treatment to check you are suitable for treatment.
Treatment with Antabuse® is usually started in a hospital or specialised clinic. It is important that you have
not drunk alcohol for at least 24 hours before taking the first dose. Swallow the tablets with water.

 Adults and the elderly:
Initially 4 tablets (800mg) on day 1, then 3 tablets (600mg) on day 2, then 2 tablets (400mg) on day 3 and
then 1 tablet (200mg) on days 4 and 5.
Then ½ to 1 tablet (100mg – 200mg) a day for as long as told by your doctor, but for no longer than six
months without review.

If you take more than you should
If you (or someone else) swallow a lot of tablets at the same time, or you think a child may have swallowed
any, contact your nearest hospital casualty department or tell your doctor immediately. Signs of an
overdose include; feeling or being sick, stomach pain, diarrhoea, drowsiness, mental disorders, tiredness,
rapid heart beat, rapid breathing, high body temperature, low blood pressure, loss of muscle control, high
blood sugar, changes in the blood (as seen in blood tests). Severe cases may result in coma, fits or death.

If you forget to take the tablets
If you forget to take a dose, and you do not remember it within 12 hours, you should not take it. Do not
take two doses the next time.


Possible side effects

Like all medicines, Antabuse® can cause side effects, although not everybody gets them.
Tell your doctor if you notice any of the following side effects or notice any other effects not listed:
 depression, paranoia, schizophrenia, mania,
 decreased sexual desire
 drowsiness and fatigue (especially at start of treatment)
 damage/inflammation of peripheral nerves (causing pain and loss of sensation in hands and feet)
 inflammation of the optic nerve
 encephalopathy (brain disease)
 feeling or being sick
 bad breath
 inflammation of the liver (hepatitis), damage to liver cells, liver failure
 allergic skin reactions such as itching and redness.
If you notice any side effects, they get worse, or if you notice any not listed, please tell your doctor or


How to store

Keep out of the reach and sight of children.
Store below 25°C in the tightly closed container, protect from light in a dry place.
Do not use Antabuse® after the expiry date stated on the label/carton/bottle. The expiry date refers to the
last day of that month.
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 to protect the environment.


Further information

What Antabuse® contains

 The active substance (the ingredient that makes the tablet work) is 200mg of disulfiram.
 The other ingredients are lactose, potato starch, povidone, microcrystalline cellulose, polysorbate 20,
tartaric acid, colloidal anhydrous silica, sodium bicarbonate, maize starch and magnesium stearate.

Contents of the pack
Pack sizes are 50 tablets

Marketing Authorisation Holder
Actavis Group PTC ehf. Reykjavikurvegi 76-78, 220 Hafnarfjordur,
Recipharm Uppsala AB, Bjorkgatan 30, 751 82 Uppsala, Sweden
Date of revision: May 2017

Antabuse® 200mg (Disulfiram)
PL 30306/0036

50 tablets
Each tablet contains: Disulfiram 200 mg
Also contains: lactose, microcrystalline cellulose, tartaric acid.
Sodium content: 0.3mEq
To be taken by mouth. Keep tightly closed. Protect from light.
Store below 25°C in a dry place.
Keep out of the reach and sight of children.
MA holder:
Actavis Group PTC ehf.
Reykjavikurvegi 76-78
220 Hafnarfjordur, Iceland
EX32 8NS, UK
Actavis logo

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Further information

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