2. What you need to know before you take ZYDOL
Do not take ZYDOL,
- if you are allergic to tramadol or any of the other ingredients
of this medicine (listed in section 6);
- in acute poisoning with alcohol, sleeping pills, pain relievers
or other psychotropic medicines (medicines that affect mood and
- if you are also taking MAO inhibitors (certain medicines used
for treatment of depression) or have taken them in the last 14 days before
treatment with ZYDOL (see “Other medicines and ZYDOL”);
- if you are an epileptic and your fits are not adequately controlled by treatment;
- as a substitute in drug withdrawal.
Warnings and precautions
Talk to your doctor before taking ZYDOL
- if you think that you are addicted to other pain relievers
- if you suffer from consciousness disorders (if you feel that you
are going to faint);
- if you are in a state of shock (cold sweat may be a sign of
- if you suffer from increased pressure in the brain (possibly
after a head injury or brain disease);
- if you have difficulty in breathing;
- if you have a tendency towards epilepsy or fits because the risk
of a fit may increase;
- if you suffer from a liver or kidney disease;
Epileptic fits have been reported in patients taking tramadol at the
recommended dose level. The risk may be increased when doses of tramadol
exceed the recommended upper daily dose limit (400 mg).
Please note that ZYDOL may lead to physical and psychological
When ZYDOL is taken for a long time, its effect may decrease, so that
higher doses have to be taken (tolerance development). In patients with a
tendency to abuse medicines or who are dependent on medicines, treatment
with ZYDOL should only be carried out for short periods and under strict
Please also inform your doctor if one of these problems occurs during
ZYDOL treatment or if they applied to you in the past.
Other medicines and ZYDOL
Tell your doctor or pharmacist if you are taking, have recently taken
or might take any other medicines.
ZYDOL should not be taken together with MAO inhibitors (certain
medicines for the treatment of depression).
The pain-relieving effect of ZYDOL may be reduced and the length of
time it acts may be shortened, if you take medicines which contain
- carbamazepine (for epileptic fits);
- ondansetron (prevents nausea).
Your doctor will tell you whether you should take ZYDOL, and which
The risk of side effects increases,
- if you are taking tranquillizers, sleeping pills, other pain
relievers such as morphine and codeine (also as cough medicine), and
alcohol while you are taking ZYDOL. You may feel drowsier or feel that you
might faint. If this happens tell your doctor.
- 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 ZYDOL at the same time. Your doctor will tell you
whether ZYDOL is suitable for you.
- if you are taking certain antidepressants ZYDOL 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
- if you are taking coumarin anticoagulants (medicines for blood
thinning), e.g. warfarin, together with ZYDOL. The effect of these
medicines on blood clotting may be affected and bleeding may
ZYDOL with food and alcohol
Do not drink alcohol during treatment with ZYDOL as its effect may be
Food does not influence the effect of ZYDOL.
Pregnancy, breast-feeding and fertility
If you are pregnant or breast-feeding, think you may be pregnant or are
planning to have a baby, ask your doctor or pharmacist for advice before
taking this medicine.
There is very little information regarding the safety of tramadol in
human pregnancy. Therefore you should not use ZYDOL if you are
Chronic use during pregnancy may lead to withdrawal symptoms in
Generally, the use of tramadol is not recommended during breast-feeding. Small amounts of tramadol are excreted into breast milk. After a
single dose it is usually not necessary to interrupt breast-feeding.
Based on human experience tramadol is suggested not to influence female
or male fertility
Driving and using machines
ZYDOL may cause drowsiness, dizziness and blurred vision and therefore
may impair your reactions. If you feel that your reactions are affected,
do not drive a car or other vehicle, do not use electric tools or operate
3. How to take ZYDOL
Always take this medicine exactly as your doctor has told you. Check
with your doctor or pharmacist if you are not sure.
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. Do not take more than 400 mg tramadol hydrochloride
daily, except if your doctor has instructed you to do so.
Unless otherwise prescribed by your doctor, the usual dose is:
Adults and adolescents from the age of 12 years
One or two ZYDOL (equivalent to 50 mg – 100 mg tramadol hydrochloride)
Depending on the pain the effect lasts for about 4-8 hours.
Your doctor may prescribe a different, more appropriate dosage of ZYDOL
ZYDOL 50 mg Capsules are not suitable for children below the age of 12
In elderly patients (above 75 years) the excretion of tramadol may be
delayed. If this applies to you, your doctor may recommend prolonging the
Severe liver or kidney disease (insufficiency)/dialysis
Patients with severe liver and/or kidney insufficiency should not take
ZYDOL. If in your case the insufficiency is mild or moderate, your doctor
may recommend prolonging the dosage interval.
How and when should you take ZYDOL?
ZYDOL are for oral use.
Always swallow ZYDOL whole, not divided or chewed, with sufficient
liquid, preferably in the morning and evening. You may take the capsule on
an empty stomach or with meals.
How long should you take ZYDOL?
You should not take ZYDOL for longer than necessary. If you need to be treated for a longer period, your doctor will check at regular short intervals (if necessary with breaks in treatment) whether you should continue to take ZYDOL and at what dose.
If you have the impression that the effect of ZYDOL is too strong or
too weak, talk to your doctor or pharmacist.
If you take more ZYDOL than you should
If you have taken an additional dose by mistake, this will generally
have no negative effects. You should take your next dose as
If you (or someone else) swallow a lot of ZYDOL at the same time you
should go to hospital or call a doctor straight away. Signs of an overdose
include very small pupils, being sick, fall in blood pressure, fast
heartbeat, collapse, unconsciousness, fits and breathing difficulties or
If you forget to take ZYDOL
If you forget to take the capsule, pain is likely to return. Do not
take a double dose to make up for forgotten individual doses, simply
continue taking the capsule as before.
If you stop taking ZYDOL
If you interrupt or finish treatment with ZYDOL too soon, pain is
likely to return.
If you wish to stop treatment on account of unpleasant effects, please
tell your doctor.
Generally there will be no after-effects when treatment with ZYDOL is
stopped. However, on rare occasions, people who have been taking ZYDOL for
some time may feel unwell if they abruptly stop taking them. They may feel
agitated, anxious, nervous or shaky. They may be hyperactive, have
difficulty sleeping and have stomach or bowel disorders. Very few people
may get panic attacks, hallucinations, unusual perceptions such as
itching, tingling and numbness, and “ringing” in the ears (tinnitus).
Further unusual CNS symptoms, i.e. confusion, delusions, change of
perception of the own personaility (depersonalisation), and change in
perception of reality (derealisation) and delusion of persecution
(paranoia) have been seen very rarely. If you experience any of these
complaints after stopping ZYDOL, please consult your doctor.
If you have any further questions on the use of this medicine, ask your
doctor or pharmacist.
4. POSSIBLE SIDE EFFECTS
Like all medicines, this medicine can cause side effects, although not
everybody gets them.
You should see a doctor immediately if you experience symptoms of an
allergic reaction such as swollen face, tongue and/or throat, and/ or
difficulty swallowing or hives together with difficulties in
The most common side effects during treatment with ZYDOL are nausea and
dizziness, which occur in more than 1 in 10 people.
Very common: may affect more than 1 in 10 people
- feeling sick (nausea)
Common: may affect up to 1 in 10 people
- headaches, drowsiness
- constipation, dry mouth, being sick (vomiting),
- sweating (hyperhidrosis)
Uncommon: may affect up to 1 in 100 people
- effects on the heart and blood circulation (pounding of the
heart, fast heartbeat, feeling faint or collapse). These adverse effects
may particularly occur in patients in an upright position or under
- urge to sick (retching), stomach trouble (e.g. feeling of
pressure in the stomach, bloating), diarrhoea
- skin reactions (e.g. itching, rash)
Rare: may affect up to 1 in 1,000 people
- allergic reactions (e.g. difficulty in breathing, wheezing,
swelling of skin) and shock (sudden circulation failure) have occurred in
very rare cases.
- slow heartbeat
- increase in blood pressure
- abnormal sensations (e.g. itching, tingling, numbness),
trembling, epileptic fits, muscle twitches, uncoordinated movement,
transient loss of consciousness (syncope), speech disorders.
- Epileptic fits have occurred mainly at high doses of tramadol or
when tramadol was taken at the same time as other medicines which may
- changes in appetite
- hallucination, confusional state, sleep disorders, delirium,
anxiety and nightmares
- Psychological complaints may appear after treatment with ZYDOL.
Their intensity and nature may vary (according to the patient’s
personality and length of therapy). These may appear as a change in mood
(mostly high spirits, occasionally irritated mood), changes in activity
(usually suppression, occasionally increase) and decreased cognitive and
sensory perception (being less aware and less able to make decisions,
which may lead to errors in judgement).
- Drug dependence may occur. If ZYDOL is taken over a long period
of time dependence may occur, although the risk is very low. When
treatment is stopped abruptly, signs of withdrawal may appear (see “If you
stop taking ZYDOL”).
- blurred vision, excessive dilation of the pupils (mydriasis),
constriction of the pupil (miosis).
- slow breathing, shortness of breath (dyspnoea)
- Worsening of asthma has been reported, however it has not been
established whether it was caused by tramadol. If the recommended doses
are exceeded, or if other medicines that depress brain function are taken
at the same time, breathing may slow down.
- weak muscles
- passing urine with difficulty or pain, passing less urine than
Very rare: may affect up to 1 in 10,000 people
Not known: frequency cannot be estimated from the available
- decrease in blood sugar level
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.
6. Contents of the pack and other information
What ZYDOL contains
The active substance is tramadol hydrochloride.
Each capsules contains 50 mg tramadol hydrochloride.
The other ingredients are:
Capsule powder: Microcrystalline cellulose, sodium starch glycolate,
magnesium stearate and colloidal anhydrous silica.
Capsule shell: gelatine, sodium laurelsulfate, yellow iron oxide (E172)
and titanium dioxide (E171).
What ZYDOL look like and contents of the pack
ZYDOL are yellow/yellow shiny hard gelatin capsules.
ZYDOL are packed in blisters strips and are supplied in boxes of 10,
20, 30, 50, 100 or 500 capsules.
Not all pack sizes may be marketed.
Marketing Authorisation Holder and Manufacturer
Marketing Authorisation Holder:
Regus Lakeside House
1 Furzeground Way
Stockley Park East
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