What is a Patient Information Leaflet and why is it useful?

The Patient Information Leaflet (PIL) is the leaflet included in the pack with a medicine. It is written for patients and gives information about taking or using a medicine. It is possible that the leaflet in your medicine pack may differ from this version because it may have been updated since your medicine was packaged.

Below is a text only representation of the Patient Information Leaflet. The original can be viewed in PDF format using the link above.

The text only version may be available from RNIB in large print, Braille or audio CD. For further information call RNIB Medicine Leaflet Line on 0800 198 5000. The product code(s) for this leaflet is: PL 19166/0020.

Zamadol Injection


Zamadol® Injection

active substance: tramadol hydrochloride

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 your pharmacist.
  • This medicine has been prescribed for you. Do not pass it on to others as it may harm them, even if their symptoms are the same as yours.
  • If any of the side effects get serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.

In this leaflet:

1. What Zamadol is and what it is used for
2. Before you use Zamadol
3. How to use Zamadol
4. Possible side effects
5. How to store Zamadol
6. Further information

1. What Zamadol is and what it is used for

The name of your medicine is Zamadol® Injection (referred to as a Zamadol throughout this leaflet).

Zamadol belongs to a group of medicines called analgesics, commonly known as pain killers or pain-relievers. The active substance, tramadol hydrochloride, interrupts the pain messages being sent to your brain, and it also acts in your brain to stop pain messages from being felt. This means that Zamadol does not stop the pain from happening, but you will not be able to feel the pain as much.

Zamadol is used to relieve moderate to severe, a sudden or a long-standing pain (for example pain after an operation, or after an injury).

2. Before you use Zamadol

Do not use Zamadol if:

  • you are allergic (hypersensitive) to tramadol hydrochloride or to any of the other ingredients resulting in a skin rash, swelling in face or difficulty in breathing (see section 6. Further Information)
  • you are taking, or you have taken in the last two weeks, monoamine oxidase inhibitors (MAOIs), these are medicines to treat depression
  • you are suffering from uncontrolled epilepsy
  • you have drunk enough alcohol to make you feel woozy or drunk
  • you have taken more than the prescribed dose of your sleeping tablets,antipsychotics, antidepressants (antipsychotics and antidepressanst are medicines that affect mood and emotions) or other pain killers, which can slow down your breathing and reactions.
    (See section 'Taking other medicines' for details)

Take special care with Zamadol

  • If taken for long periods there is the rare possibility that addiction may develop.
  • There is a rare possibility that Zamadol may cause convulsions (fits). The risk is increased if doses above the daily maximum are taken and if you are also taking anti-depressants or antipsychotics.
  • If you have a tendency to drug addiction or abuse you should take Zamadol for short periods only. Please tell your doctor about this as he/she may want to monitor your pain control more closely.
  • You should not take this product for the treatment of withdrawal symptoms caused by opiates (morphine-like medicines).
  • If you have a head injury, breathing difficulties or severe liver or kidney problems.

Taking other medicines

Please tell your doctor or pharmacist if you are taking or have recently taken any other medicines, including medicines obtained without prescription:

  • Do not use Zamadol at the same time, or within 14 days of taking medicines called monoamine oxidase inhibitors (moclobemide or phenezeline for depression, selegiline for Parkinson's disease).
  • The pain relief effect of Zamadol may be weakened and/or shortened if you also take medicines containing:
    • Carbamazepine (used to treat epilepsy)
    • Buprenorphine, nalbuphine, or pentazocine (pain killers)
    • Ondanserton (prevents nausea)
  • The risk of side effects increases if you are taking certain antidepressants. Zamadol may interact with these medicines and you may experience symptoms such as involuntary, rhythmic contractions of muscles, including the muscles that control movement of the eye, agitation, excessive sweating, tremor, exaggeration of reflexes, increased muscle tension, body temperature above 38°C. You must tell your doctor if you are taking these medicines.
  • The risk of side effects increases if you are taking medicines which may cause convulsions (fits), such as certain antidepressants or antipsychotics. The risk of having a fit may increase if Zamadol is being administered at the same time. Your doctor will tell you whether Zamadol is suitable for you.
  • Medicines that act on the nervous system such as hypnotics, tranquillisers, sleeping pills and pain killers may make you feel drowsier or faint when taken with Zamadol.
  • Anticoagulants to thin your blood such as warfarin. The effectiveness of the medicines may be altered if you are also using Zamadol.

Tell your doctor or dentist if you are taking any of these medicines.

Pregnancy and breast-feeding

Zamadol should not be given during pregnancy or while breast-feeding. Ask your doctor or pharmacist for advice before taking any medicine.

Driving and using machines

Zamadol may cause drowsiness, particularly if taken with alcohol, anti-histamines and other medicines that may cause drowsiness. Do not drive or operate heavy machinery unless you know how Zamadol affects you.

The medicine can affect your ability to drive as it may make you sleepy or dizzy.

  • Do not drive while taking this medicine until you know how it affects you.
  • It is an offence to drive if this medicine affects your ability to drive.
  • However, you would not be committing an offence if:
    • The medicine has been prescribed to treat a medical or dental problem and
    • You have taken it according to the instructions given by the prescriber or in the information provided with the medicine and
    • It was not affecting your ability to drive safely

Talk to your doctor or pharmacist if you are not sure whether it is safe for you to drive while taking this medicine.

3. How to use Zamadol

Always use Zamadol exactly as your doctor has told you. You should check with your doctor or pharmacist if you are not sure.

The solution for injection is to be injected intravenously, intramuscularly or subcutaneously.

The usual dose is 50 mg (1ml) or 100 mg (2 ml) every 4 to 6 hours. Intravenous injections should be given slowly over 2-3 minutes.

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 given.

The maximum dose is usually 600 mg daily (12 ml).

Dosage for children and adolescent:

Under 12 years - Zamadol should not be given to children under 12.

Dosage for 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 or kidney insufficiency should not be given Zamadol injection. If in your case the insufficiency is mild or moderate, your doctor may recommend prolonging the dosage interval.

Method of administration:

Ask your doctor or pharmacist if:

  • you are not sure how many injections to use or when to use them
  • you think that the effect is too strong or too weak

If you use more Zamadol than you should

If you accidentally use more than your prescribed dose, tell your doctor or pharmacist immediately and if necessary contact your nearest hospital casualty department. Remember to take the pack and any remaining ampoules with you.

If you forget to take Zamadol

Do not take more than one dose to make up for the forgotten dose.

If you stop taking Zamadol

Do not stop taking Zamadol, or lower the dose, without first checking with your doctor. Your doctor may want you to gradually reduce the amount of Zamadol you are taking before stopping completely to ensure that you do not suffer from withdrawal symptoms.

Withdrawal symptoms include: agitation, anxiety, nervousness, difficulty sleeping, restlessness, trembling and gastro-intestinal problems.

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

4. Possible side effects

Like all other medicines, Zamadol can cause side effects, although not everybody gets them.

Please stop taking this medicine and contact your doctor as soon as possible if you experience any of the following rare reactions:

  • allergic reaction such as difficulty in breathing, wheezing, swelling of the face or throat.
  • anaphylactic reaction (an extreme allergic reaction)

Very Common (occurs in more than 1 in 10 patients)

  • dizziness
  • vomiting and nausea (being and feeling sick)

Common (occurs in more than 1 in 100 patients and less than 1 in 10 patients)

  • headache
  • drowsiness, sleepiness (fatigue)
  • constipation, dry mouth
  • sweating

Uncommon (occurs in more than 1 in 1,000 patients and less than 1 in 100 patients)

  • rapid heart beat, palpitation, sudden drops in blood pressure. These adverse effects may occur especially on intravenous administration and in patients who are physically stressed
  • itching, skin rash
  • retching, feeling bloated or full

Rare (occurs in more than 1 in 10,000 patients and less than 1 in 1,000 patients)

  • appetite changes
  • psychic effects including: changes in mood, activity behaviour and perception, hallucinations, confusion, restlessness sleep disturbances and nightmares
  • convulsions (fits)
  • tingling sensation and trembling
  • slow heart beat, increase in blood pressure
  • muscle weakness
  • difficulty or inability in passing urine
  • blurred vision
  • dependency

Very rare (occurs in less than 1 in 10,000 patients included isolated eases)

  • vertigo (feeling of dizziness or "spinning")
  • asthma and breathing difficulties
  • elevated liver enzymes
  • flushing

Frequency not known (cannot be estimated from the available data)

  • low blood sugar level

Reporting of side effects

If you get any side effects, talk to your doctor, 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: www.mhra.gov.uk/yellowcard

By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Zamadol

  • Keep out of reach and sight of children.
  • Do not use Zamadol after the expiry date which is stated on the carton. The expiry date refers to the last day of that month.
  • Keep your injection in the original package.
  • 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.

6. Further information

What Zamadol contains:

The active substance in Zamadol lnjection is tramadol hydrochloride. The other ingredients are sodium acetate, nitrogen and water for injection.

These presentations are not available in all countries.

What Zamadol Injection looks like and contents of the pack

Zamadol injection is supplied in packages of 5 ampoules and 10 ampoules made of colourless glass, each containing 2 ml of solution for injection.

The marketing authorisation holder is:

MEDA Pharmaceuticals Ltd
Skyway House
Parsonage Road
Bishop’s Stortford
CM22 6PU

The manufacturer of this product is:

MEDA Pharma GmbH & Co. KG
Benzstrasse 1
61352 Bad Homburg

This leaflet was last revised in April 2014