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TIIODOL SR 150 MG PROLONGED-RELEASE TABLETS

Active substance(s): TRAMADOL HYDROCHLORIDE

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Package leaflet: Information for the Patient

Invodol SR 100 mg Prolonged-release Tablets
Invodol SR 150 mg Prolonged-release Tablets
Invodol SR 200 mg Prolonged-release Tablets
tramadol hydrochloride
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.
!
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. This includes any possible side
effects not listed in this leaflet. See section 4.
What is in this leaflet
1. What Invodol SR is and what it is used for
2. What you need to know before you take Invodol SR
3. How to take Invodol SR
4. Possible side effects
5. How to store Invodol SR
6. Contents of the pack and other information

codeine (also as cough medicine), and
alcohol while you are taking Invodol SR. 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
Tramadol hydrochloride, the active substance in
antidepressants or antipsychotics. The risk of
Invodol SR, is a centrally active painkiller of the
having a fit may increase if you take Invodol SR
opioid group. Its pain alleviating effects are
at the same time. Your doctor will tell you
attributable to its influence on specific nerve cells
whether Invodol SR is suitable for you.
in the spinal cord and in the brain.
!
if you are taking certain antidepressants Invodol
SR may interact with these medicines and you
Invodol SR is used:
may experience symptoms such as involuntary,
!
in the treatment of moderately severe to severe
rhythmic contractions of muscles, including the
muscles that control movement of the eye,
pain.
agitation, excessive sweating, tremor,
exaggeration of reflexes, increased muscle
tension, body temperature above 38°C.
What you need to know before
!
if you are concurrently taking medicines that
you take Invodol SR
prevent normal blood coagulation (so-called
coumarin derivatives, such as warfarin). The
anticoagulatory effects of these medicines can
be enhanced and there can be major bleeding
Do not take Invodol SR
and haemorrhaging under small areas of the
!
if you are allergic to tramadol or any of the other
skin (ecchymosis).
ingredients of this medicine (listed in section 6)
Invodol SR with food and alcohol
!
in acute poisoning with alcohol, sleeping
Do not drink alcohol while taking Invodol SR, this
agents, centrally acting painkillers, opioids or
could enhance the effects of this medicine. Food
other psychotropic medicines (medicines which
does not influence the effect of Invodol SR (see
influence mood, emotional status and
section 3 "How to take Invodol SR")
disposition)
!
if you are also taking monoamine oxidase
Pregnancy, breast-feeding and fertility
(MAO) inhibitors concomitantly (specific
If you are pregnant or breast- feeding, think you
medicines which are used to treat abnormally
may be pregnant or are planning to have a baby,
ask your doctor or pharmacist for advice before
depressive mood [depression] or Parkinson's
taking this medicine.
disease) or have taken them in the last 14 days
before treatment with Invodol SR (see “Other
Pregnancy
medicines and Invodol SR”)
There is very little information regarding the safety
!
if you have epilepsy and your fits are not
of tramadol hydrochloride in human pregnancy.
adequately controlled by treatment
Therefore, you should not take Invodol SR if you
!
as a substitute in drug withdrawal treatment.
are pregnant.

1

What Invodol SR is and what it is
used for

2

Chronic use of Invodol SR during pregnancy may
Warnings and precautions
lead to withdrawal symptoms in the newborn child
!
think you may already be dependent on other
after birth.
analgesic agents (opioids)
!
have a consciousness disturbance (e.g. if you
Breast-feeding
feel unusually dazed)
Small amounts of tramadol are excreted into
!
are in shock (cold sweat can be an indication of
breast milk. You should not take Invodol SR if you
this)
are breast-feeding.
!
have difficulty in breathing
!
suffer from increased pressure in the brain
As a rule, it is not necessary to interrupt
breast-feeding after taking a single dose of
(possibly after a head injury or brain disease)
tramadol. Please ask your doctor for advice.
!
have a liver or kidney disorder
!
react sensitively to opiates
Fertility
!
tend to be epileptic or suffer seizures (fits)
Based on human experience tramadol
hydrochloride is suggested not to influence female
If any of the above applies to you, please talk to
or male fertility.
your doctor before starting to take this medicine.
Epileptic fits have been reported in patients taking
tramadol at the recommended dose level. The
risk may be increased if the recommended
upper daily dose limit of 400 mg Invodol SR is
exceeded or if you are taking medicines
concomitantly which lower the seizure threshold
(see "Other medicines and Invodol SR").
Please note that psychological and physical
dependence can develop in patients on Invodol
SR. During long-term use, the effects of Invodol
SR may weaken, with the result that it becomes
necessary to use a higher dose (development of
tolerance). For this reason, Invodol SR must be
used for short periods only and under strictest
medical supervision in patients at risk of
developing drug dependence.
Please also inform your doctor if any of these
problems develop while you are taking Invodol SR
and if you have experienced such problems in the
past.
Children
Invodol SR is not suitable for use in children of
less than 12 years of age
Elderly Patients of more than 75 years of age
should be monitored carefully as the elimination
of tramadol can be prolonged (see section 3 “How
to take Invodol SR”).
Other medicines and Invodol SR
Tell your doctor or pharmacist if you are
taking, have recently taken or might take any
other medicines.
Do not take Invodol SR concurrently with
monoamine oxidase (MAO) inhibitors
(medicines which are used to treat abnormally
depressive mood [depression] or Parkinson's
disease) or if you have taken these in the last 14
days before treatment with Invodol SR. It cannot
be excluded that life-threatening interactions,
involving effects on the central nervous system
and on respiratory and cardiovascular function,
could occur.

Driving and using machines
Invodol SR can, among other things, cause
!
drowsiness and
!
visual disturbance (blurred vision)
and thus can impair your ability to react. Do not
drive or use any tools or machines if this occurs
or if you have the feeling that your ability to react
is reduced.

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.
Invodol SR contains lactose
This medicine contains lactose. If you
have been told by your doctor that you have an
intolerance to some sugars, contact your doctor
before taking this medicine.

3

How to take Invodol SR

Always take this medicine exactly as your doctor has
told you. Check with your doctor or pharmacist if you
are not sure.
The dose should be adjusted to the intensity of your
pain and your individual pain sensitivity. In general
the lowest pain relieving dose should be taken.
The usual dose is, unless otherwise prescribed by
your doctor
Adults and adolescents over the age of 12
years
The usual starting dose is 100 mg Invodol SR twice
daily, taken once in the morning and once in the
evening.

The analgesic effects of Invodol SR may be
reduced and the duration of therapeutic effects
may be shortened if you are taking medicines
If pain relief is insufficient, your doctor can
containing one of the following active substances:
increase the dose to 150 mg twice daily or
200 mg twice daily.
!
carbamazepine (used to treat epileptic
seizures)
For doses not realisable/practicable with this
!
pentazocine, nalbuphine or buprenorphine
medicine, other strengths are available.
(painkillers)
There must be a minimum interval of 8 hours
!
ondansetron (used to treat nausea)
between each dose.
The risk of side effects increases:
As a general rule, you should take no more than
!
if you take Invodol SR concurrently with other
the minimum dose you require to control your
pain.
medicines which also depress brain
function, e.g. tranquilizers, sleeping agents,
Do not take more than 400 mg Invodol SR daily
other pain relievers such as morphine and
unless there are specific medical reasons for this.

Continued on the next page >>

!
drug dependence may occur
!
changes in appetite
!
abnormal skin sensations (such as tingling, pins
and needles, sensation of numbness)
!
tremor
Elderly
shallow breathing; may result if the prescribed
In elderly patients (above 75 years) the excretion !
dose is exceeded or other medicines that
of tramadol may be delayed. If this applies to
depress brain function are used concurrently
you, your doctor may recommend prolonging
!
epileptic fits; occurred mainly after the use of high
the dosage interval.
doses of tramadol or when tramadol was taken at
the same time as other medicines which may
Severe liver or kidney disease
induce fits
(insufficiency)/dialysis patients
involuntary muscle tics
Patients with severe liver and/or kidney insufficiency !
!
impaired coordination
should not take Invodol SR. If in your case the
!
transient loss of consciousness (syncope)
insufficiency is mild or moderate, your doctor may
!
speech disorders
recommend prolonging the dosage interval
!
blurred vision, constriction of the pupil (miosis),
widening of the pupils (mydriasis)
Note:
!
slow heart rate (bradycardia)
The doses recommended above are guideline
!
increased blood pressure
values only. If you are taking the preparation for
!
slow breathing, shortness of breath (dyspnoea);
the management of chronic pain, you should
Shallow breathing may result if the prescribed
always, if possible, strictly follow a planned
dose is exceeded or other medicines that
administration schedule.
depress brain function are used concurrently.
!
worsening of asthma has been reported, although
Method of administration
there is no data available to show that this is
Swallow the prolonged-release tablets whole with
directly related to treatment with tramadol
sufficient liquid (e.g. one glass of water). Do not
hydrochloride
divide, break or chew the tablets. You can
!
weak muscles
take the prolonged-release tablets separately or
!
passing urine with difficulty or pain, or excretion
with meals.
of less urine than normal
Use in children under 12 years
Invodol SR is not recommended for use in children
under 12 years.

It is important that you do not continue to take
Invodol SR for longer than absolutely necessary.
If you take more Invodol SR than you should
This will not normally have any negative
consequences for you. Continue to take Invodol
SR as your pain recurs as usual.
If you have taken an excessive dose of the
medicine the following signs can occur: narrowed
pupils, vomiting, low blood pressure, heart failure,
feeling sleepy or drowsy (with coma in extreme
cases), migraine symptoms or epileptic seizures
(fits) and shallow breathing with respiratory arrest in
extreme cases.
If you observe any of these symptoms or if a child
accidentally takes Invodol SR, immediately contact
the nearest doctor or hospital for help!
If you forget to take Invodol SR
You may experience recurrence of pain. Do not
take a double dose to make up for a forgotten
dose, but continue to take the preparation as
prescribed.
If you stop taking Invodol SR
If you interrupt or prematurely stop treatment with
Invodol SR, your pain may return. If you decide
you wish to stop taking this preparation because
of unpleasant side effects, please consult your
doctor.
There will normally be no after-effects when you
stop taking Invodol SR. However, in a few cases in
which patients have been taking Invodol SR for a
long period, they 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 noise in the ears
(tinnitus). Further unusual CNS symptoms, i.e.
confusion, delusions, change of perception of their
own personality ( depersonalization), 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 taking Invodol SR, 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.

Very rare: may affect up to 1 in 10,000 people
!
elevation of liver enzymes

Not known: frequency cannot be estimated from the
available data
!
decrease in blood sugar level
There is a risk of development of dependence.
Although the risk is slight, dependence can
develop when Invodol SR is used for longer
periods. Withdrawal symptoms can develop when
treatment is stopped (see section 3 “If you stop
taking Invodol SR”)
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:
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 Invodol SR

Keep this medicine out of the sight and reach of
children.
Do not use Invodol SR after the expiry date which is
stated on the blister and the carton after "EXP".
The expiry date refers to the last day of that month.
This medicine does not require any special storage
conditions.
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.

6

Contents of the pack and
other information

What Invodol SR contains
The active substance is: tramadol
hydrochloride
Each Invodol SR 100 mg Prolonged-release Tablet
contains 100 mg tramadol hydrochloride as
8.3 mg tramadol hydrochloride, immediate
release, and 91.7 mg tramadol hydrochloride,
slow release.
Each Invodol SR 150 mg Prolonged-release Tablet
contains 150 mg tramadol hydrochloride as
12.5 mg tramadol hydrochloride, immediate
release, and 137.5 mg tramadol hydrochloride,
slow release.

Serious side effects:
Invodol SR can occasionally cause allergic
reactions, although severe allergic reactions are
rare (affecting 1 to 10 users in 10,000). Stop
taking Invodol SR and tell your doctor straight
Each Invodol SR 200 mg Prolonged-release Tablet
away if you experience any of the following
symptoms of a serious allergic reaction:
contains 200 mg tramadol hydrochloride as
!
sudden wheezing or difficulty in breathing
16.7 mg tramadol hydrochloride, immediate
!
swelling of the face, lips or throat
release, and 183.3 mg tramadol hydrochloride,
!
rash or itching (especially affecting your whole
slow release.
body)
The other ingredients are:
You should stop taking Invodol SR and contact
Initial layer
your nearest hospital if you experience any
lactose monohydrate, calcium hydrogen
symptoms of cardiovascular collapse, such as:
phosphate dihydrate, maize starch, cellulose
!
chest pain
microcrystalline, sodium starch glycollate (Type
!
irregular heart beat
A), magnesium stearate, silica colloidal
!
breathlessness
anhydrous.
Epileptic seizures may occur after the use of high
doses of tramadol or after concurrent use of other
medicines which can themselves cause seizures
or which lower the seizure threshold.

depot layer
lactose monohydrate, hypromellose, povidone
K25, magnesium stearate, silica colloidal
anhydrous, castor oil hydrogenated, quinoline
yellow (E104), indigo carmine (E132), aluminium
Other possible side effects:
Very common: may affect more than 1 in 10 people hydroxide.
!
dizziness
!
nausea
What Invodol SR looks like and contents of the
pack
Common: may affect up to 1 in 10 people
Invodol SR 100mg Prolonged-release Tablets are
!
headache
flat, round bi-layer-tablets with facet, initial layer
!
drowsiness
white, slow-release layer green with one-sided
!
vomiting
identification mark "TR/100 R"
!
constipation
!
dry mouth
Invodol SR 150 mg Prolonged-release Tablets are
!
sweating
flat, round bi-layer-tablets with facet, initial layer
!
tiredness
white, slow-release layer green with one-sided
identification mark "TR / 150 R".
Uncommon: may affect up to 1 in 100 people
!
effects on the regulation of blood circulation (for
Invodol SR 200 mg Prolonged-release Tablets are
example palpitations, increased heart rate
flat, round bi-layer-tablets with facet, initial layer
weakness attack and circulatory failure).
white, slow-release layer green with one-sided
These side effects occur most frequently in
identification mark "TR / 200 R".
association with upright body posture and
physical exertion
!
urge to vomit (retching)
Invodol SR is available in packs with 10, 20, 30,
!
gastric complications (e. g. stomach upset,
50, 60 and 100 prolonged-release tablets in a
abdominal fullness)
PP/Aluminium blister.
!
diarrhoea
Not all pack sizes may be marketed.
!
skin symptoms (e.g. itching, rash, rapid
reddening of the skin)
Marketing Authorisation Holder and
Manufacturer
Rare: may affect up to 1 in 1,000 people
Marketing Authorisation Holder
!
allergic reactions (e.g difficulty in breathing,
wheezing, swelling of the skin) and shock (sudden Sandoz Ltd,
Frimley Business Park, Frimley,
circulatory failure)
!
hallucination, confusion, anxiety, delirium, sleep Camberley, Surrey, GU16 7SR, UK.
disturbances and nightmares - Psychological
symptoms may occur after treatment with Invodol
SR, whereby their intensity and nature can differ
in the individual case (depending on personality
and duration of use). These can take the form of
mood changes (usually elated mood,
sometimes irritable mood), changes in activity
(usually reduced, sometimes increased) and
changes in the cognitive and sensory abilities
(changes in sensory perception and impairment
of the ability to recognise, which can lead to
inappropriate decisions).

Manufacturer
Salutas Pharma GmbH,
Otto-Von-Guericke-Alle 1, D-39179 Barleben,
Germany.
Distributed by
Ennogen Healthcare Limited
Unit G4 Riverside Industrial Estate
Riverside Way, Dartford, Kent, DA1 5BS, UK
This leaflet was last revised 04/2017.

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