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This is a text only leaflet, designed for the visually impaired. Please visit our electronic Medicines Compendium (eMC) website to view the original document which may contain images or tables.

You may be able to get this leaflet in large print, Braille or as an audio CD, call the RNIB Medicine Leaflet line on 0800 198 5000 for more information.

The product codes for this leaflet are: PL 16950/0085, PL 16950/0087, PL 16950/0086, PL 16950/0084


ZAMADOL 24hr 150 (200/300/400)mg TABLETS

Company Details

Meda Pharmaceuticals

Sky Way HouseParsonage RoadTakeleyBishop's StortfordCM22 6PU
Medical Information Direct Line:
Medical Information
Medical Information Facsimile:
Out of Hours e-mail:+44 (0)1748 828 810
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Package leaflet: Information for the user

Zamadol® 24hr 150 mg, 200 mg, 300 mg and 400 mg prolonged-release tablets

Tramadol hydrochloride

Read all 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 become serious, or if you notice any side effects not in this leaflet, please tell your doctor or pharmacist.

In this leaflet:

1. What Zamadol 24hr tablets are and what they are used for
2. Before you take Zamadol 24hr tablets
3. How to take Zamadol 24hr tablets
4. Possible side effects
5. How to store Zamadol 24hr tablets
6. Further information

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1. What Zamadol 24hr tablets are and what they are used for

These tablets have been prescribed for you by your doctor to relieve moderate to severe pain over a period of 24 hours.

They contain the active ingredient tramadol which belongs to a group of medicines called strong analgesics or 'painkillers'.

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2. Before you take Zamadol 24hr tablets

Do not take Zamadol 24hr tablets:

  • if you are allergic (hypersensitive) to tramadol or any of the other ingredients of the tablets (see section 6 'Further Information');
  • if you have drunk too much alcohol, or taken more than recommended dose of sleeping tablets, painkillers or psychotropic medicines (used to treat psychiatric or mental disorders);
  • if you are taking a type of medicine known as monoamine oxidase inhibitor (examples include tranylcypromide, phenelzine, isocarboxazid, moclobemide and linezolid), or if you have taken this type of medicine in the last two weeks;
  • to treat withdrawal symptoms that may occur when you stop taking another strong painkiller;
  • if you are under 12 years of age.

Take special care with Zamadol 24hr tablets

Before treatment with these tablets tell your doctor or pharmacist if you:

  • are or have ever been addicted to drugs;
  • suffer from, or have ever suffered from epilepsy, seizures, fits or convulsions;
  • have a severe headache or feel sick due to head injury or increased pressure in your skull (for instance due to brain disease). This is because the tablets may make symptoms worse or hide the extent of a head injury;
  • have severe liver or kidney problems;
  • are suffering from shock (this may make you suddenly feel very light-headed, faint, cold or clammy and look pale);
  • have a condition where you breathe more slowly and weakly than expected (respiratory depression).

Taking Zamadol 24hr tablets with 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. If you take these tablets with some other medicines, the effect of these tablets or the other medicine may be changed.

These tablets must not be used together with a monoamine oxidase inhibitor, or if you have taken this type of medicines in the last two weeks (see section 2 'Don not take...').

The risk of side effects increases,

  • if you are taking medicines which may cause convulsions (fits), such as certain antidepressants or antipsychotics. The risk having a fit may increase if you take Zamadol 24hr tablets at the same time. Your doctor will tell you whether Zamadol 24hr tablets are suitable for you.
  • if you are taking certain antidepressants. Zamadol 24hr tablets may interact with these medicines and you may experience symptoms such as involuntary, rhythmic contractions of muscles, including that control movement of the eye, agitation, excessive sweating, tremor, exaggeration of reflexes, increased muscle tension, body temperature above 38°C.

Tell your doctor or pharmacist if you are taking:

  • medicines to help you sleep
    (for example tranquillisers, hypnotics or sedatives);
  • carbamazepine to treat seizures, fits or convulsions and certain pain conditions;
  • medicine to treat depression;
  • medicine to treat psychiatric or mental disorders;
  • ritonavir to treat HIV;
  • digoxin to treat heart failure or an irregular heart beat;
  • other strong analgesics or 'painkillers' (such as buprenorphine, nalbuphine and pentazocine);
  • certain morphine-like medicines used for example, to prevent or treat coughing, or to treat the symptoms of withdrawal;
  • medicines known as barbiturates to either fits or to help you sleep;
  • medicines known as benzodiazepines to treat anxiety or to help you sleep;
  • certain medicines to prevent your blood clotting or to help thin your blood (known as coumarin anticoagulants, for example warfarin);
  • ondansetron to stop you feeling or being sick.

Taking Zamadol 24hr tablets with alcohol

Please ask your doctor or pharmacist for advice if you intend to drink alcohol while you are being treated with these tablets.

Pregnancy and breastfeeding

Do not take these tablets if you are pregnant or breastfeeding.

Ask your doctor or pharmacist for advice before taking any medicine.

Driving and using machines

These tablets may cause a number of side effects such as drowsiness, blurred vision and dizziness which could affect your ability to drive or use machinery (see section 4 for a full list of side effects).

These are usually most noticeable when you first start taking the tablets, or when changing to a higher dose. If you are affected you should not drive or use machinery.

Important information about some of the ingredients of Zamadol 24hr tablets

These tablets contain lactose which is a form of sugars. If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking these tablets.

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3. How to take Zamadol 24hr tablets

Always take these tablets exactly as your doctor has told you. The label on your medicine will tell you how many tablets to take and how often.

The dosage should be adjusted to the intensity of your pain and your individual pain sensitivity. In general the lowest pain-relieving dose should be taken.

Adults and children over 12 years of age

The usual starting dose is one 150 mg tablet once a day. However, your doctor will prescribe the dose required to treat your pain. If you find that you are still in pain whilst taking these tablets discuss this with your doctor. You should not normally take more than 400 mg a day.

Elderly patients

In elderly patients (above 75 years) the excretion of tramadol may be delayed. If this applies to you, your doctor may recommend prolonging the dosage interval.

Severe liver or kidney disease (insufficiency)/dialysis patients

Patients with severe liver and/or kidney insufficiency should not take Zamadol 24hr tablets. If your case the insufficiency is mild or moderate, your doctor may recommend prolonging the dosage interval.

Children under 12 years of age

Children under 12 years of age should not take the tablets.

Do not exceed the dose recommended by your doctor. You should check with your doctor or pharmacist if you are not sure.

Swallow your tablets whole with water.

Do not crush, dissolve or chew them.

Zamadol 24hr tablets are designed to work properly over 24 hours when swallowed whole. If a tablet is broken, crushed, dissolved or chewed, the entire 24-hour dose may be rapidly absorbed into your body.

This can be dangerous, causing problems such as an overdose, which may be fatal.

You should take your tablets at the same time everyday. For instance, if you take a tablet at 8 o'clock in the morning you should take your next tablet at 8 o'clock the next morning.

If you take more Zamadol 24hr tablets than you should or if someone accidentally swallows your tablets

Call your doctor or local hospital straight away. People who have taken an overdose may feel very sleepy, sick or dizzy. They may have seizures, fits or convulsions. They may also have breathing difficulties leading to unconsciousness or even death and may need emergency treatment in hospital.

When seeking medical attention make sure that you take this leaflet and any remaining tablets with you.

If you forget to take Zamadol 24hr tablets

If you remember within 10 hours of the time your tablet was due, take your tablet straight away. Take your next tablet at your normal time. If you are more than 10 hours late, please call your doctor for advice. Do not take double dose to make up for a forgotten tablet.

If you stop taking Zamadol 24hr tablet

You should not suddenly stop taking your tablets unless your doctor tells you to. If you want to stop taking your tablets, discuss this with your doctor first. They will tell you how to do this usually by reducing the dose gradually so you do not experience unpleasant effects. Withdrawal symptoms such as agitation, anxiety, nervousness, difficulty in sleeping, being unusually overactive, shaking or gastrointestinal disorders e.g. upset stomach, may occur if you suddenly stop taking these tablets.

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

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4. Possible side effects

Like all medicines, these tablets can cause side effects, although not everybody gets them.

All medicines can cause allergic reactions, although serious allergic reactions are rare. Tell your doctor immediately if you get any sudden wheeziness, difficulties in breathing, swelling of the eyelids, face or lips, rash or itching especially those covering your whole body.

The most serious side effect is a condition where you breathe more slowly or weakly than expected (respiratory depression).

As with all strong painkillers, there is a risk that you may become addicted or reliant on these tablets.

Very common side effects (probably affecting more than 1 in 10 people taking these tablets)

  • Feeling sick (this should normally wear off after a few days however your doctor can prescribe an anti-sickness medicine if it continues to be a problem).
  • Dizziness.

Common side effects (probably affecting between 1 and 10 out of every 100 people taking these tablets)

  • Dry mouth.
  • Sweating.
  • Vomiting (being sick).

Uncommon side effects (probably affecting between 1 and 10 out of every 1,000 people taking these tablets)

  • Headache.
  • Fast heart beat, palpitations or severe heart problems.
  • A feeling of 'faintness' especially on standing up.
  • Constipation.
  • Upset stomach.
  • Rash or itchy skin.

Rare side effects (probably affecting between 1 and 10 in 10,000 people taking these tablets)

  • Tingling or numbness.
  • Blurred vision.
  • Hallucinations.
  • Nightmares.
  • Mood changes, unpleasant or uncomfortable moods or a feeling of extreme happiness.
  • Changes in activity levels.
  • Problems with recognition, changes in thinking, memory and behaviour.
  • Seizures, fits or convulsions.
  • High blood pressure.
  • Shortness of breath, difficulty in breathing or wheezing.
  • Worsening of asthma.
  • Loss of appetite.
  • Diarrhoea.
  • Pain or difficulty in passing urine.
  • Muscle weakness.
  • Flushing of the skin.
  • Slow heart beat

Very rare side effects (probably affecting fewer than 1 in 10,000 people taking these tablets)

  • Shaking.
  • Agitation, anxiety or nervousness.
  • Difficulty in sleeping.
  • Being unusually overactive.

Very rarely, these tablets may affect the results of blood test to check that your liver is working properly.

You may see the remains of the tablets in your faeces. This should not affect how the tablets work.

If any of the side effects become serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.

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5. How to store Zamadol 24hr tablets

Keep out of the reach and sight of children.

Do not use the tablets after the expiry date which is stated on blister and carton. The expiry date refers to the last day of that month.

Do not store your tablets above 30°C.

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.

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6. Further information

What Zamadol 24hr tablets contain

The active ingredient is tramadol hydrochloride. Each tablet contains 150 mg, 200 mg, 300 mg or 400 mg of tramadol hydrochloride.

The other ingredients are:

  • Hydrogenated vegetable oil
  • Talc
  • Magnesium stearate
  • Lactose monohydrate
  • Macrogol
  • Hypromellose (E464)
  • Titanium dioxide (E171)

What Zamadol 24hr tablets look like and the contents of the pack

They are white, film-coated tablets marked T followed by strength (e.g. 150, 200, 300 or 400).

In each box there are 28 tablets.

Marketing Authorisation Holder and Manufacturer

This tablets are made by

VEMEDIA Manufacturing
B.V. Verrijin Stuartweg 60
1112 AX Diemen
The Netherlands

for the marketing authorization holder

Napp Pharmaceuticals Limited
Cambridge Science Park
Milton Road
Cambridge CB4 0GW

Zamadol 24hr 150 mg, 200 mg, 300 mg and 400 mg tablets are supplied by

Meda Pharmaceuticals Ltd
Skyway House
Parsonage Road
Bishop's Stortford
CM22 6PU
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Is this leaflet hard to see or read?

Please contact Meda Pharmaceuticals Ltd at the address above.

This leaflet was revised in


Zamadol® 24hr 150 mg, 200 mg, 300 mg and 400 mg tablets are protected by European Patent (UK) No. 0699436 and 0654263.

®ZAMADOL is registered trademark of Meda Pharma GmbH & Co. KG.

© 2009-2012 Napp Pharmaceuticals Limited

734651-5 09/12

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