Consumer Medicine Information
What is in this leaflet
This leaflet answers some of the common questions people ask about BETALOC tablets.
It does not contain all the information that is known about BETALOC.
It does not take the place of talking to your doctor or pharmacist.
All medicines have risks and benefits. Your doctor will have weighed the risks of
you taking BETALOC against the benefits they expect it will have for you.
If you have any concerns about taking this medicine, ask your doctor or pharmacist.
Keep this leaflet with the medicine.
You may need to read it again.
What BETALOC is used for
BETALOC belongs to a group of medicines called beta-blockers.
BETALOC tablets are used to:
lower high blood pressure, also called hypertension
treat or prevent heart attacks, or reduce your risk of heart complications following
a heart attack
prevent migraine headaches.
It works by affecting the body's response to some nerve impulses, especially in the
As a result, it decreases the heart's need for blood and oxygen and therefore reduces
the amount of work the heart has to do. It also widens the blood vessels in the body,
as well as helping the heart to beat more regularly.
Your doctor will have explained why you are being treated with BETALOC and told you
what dose to take.
BETALOC may be used either alone or in combination with other medicines to treat your
Ask your doctor if you have any questions about why BETALOC has been prescribed for
Your doctor may have prescribed this medicine for another reason.
Follow all directions given to you by your doctor carefully.
They may differ from the information contained in this leaflet.
BETALOC is not addictive
Before you take BETALOC
When you must not take it
Do not take BETALOC tablets if:
You have any allergies to metoprolol tartrate, the active ingredient in BETALOC tablets,
or any of the ingredients listed at the end of this leaflet, or any other beta-blocker
Some of the symptoms of an allergic reaction may include shortness of breath, wheezing
or difficulty breathing; swelling of the face, lips, tongue or other parts of the
body; rash, itching or hives on the skin or you may feel faint.
you have asthma, wheezing, difficulty breathing or other lung problems, or have had
them in the past
you have a history of allergic problems, including hayfever
you have low blood pressure
you have a very slow heartbeat (less than 45-50 beats/minute)
you have certain other heart conditions
you have phaeochromocytoma (a rare tumour of the adrenal gland) which is not being
treated already with other medicines
you have a severe blood vessel disorder causing poor circulation in the arms and legs
you are receiving/having emergency treatment for shock or severely low blood pressure.
If you are not sure whether any of these apply to you, check with your doctor.
Do not use BETALOC if the expiry date (EXP) printed on the pack has passed or if the
packaging is torn or shows signs of tampering.
If it has expired or is damaged, return it to your pharmacist for disposal.
Do not give BETALOC to children.
The safety and effectiveness of BETALOC in children has not been established.
If you are not sure whether you should start taking this medicine, talk to your doctor.
Before you start to take it
You must tell your doctor if you have any allergies to:
metoprolol tartrate or any of the ingredients listed at the end of this leaflet.
any other medicine, including other beta-blocker medicines
any other substances, such as foods, preservatives or dyes.
Tell your doctor if you have, or have had, any medical conditions, especially the
asthma, wheezing, difficulty breathing or other lung problems
an overactive thyroid gland
certain types of angina
any other heart problems
phaeochromocytoma, a rare tumour of the adrenal gland
any blood vessel disorder causing poor circulation in the arms and legs.
Tell your doctor if you are pregnant or intend to become pregnant.
Like most beta-blocker medicines, BETALOC is not recommended for use during pregnancy.
Tell your doctor if you are breast-feeding or plan to breast-feed.
The active ingredient in BETALOC passes into breast milk and therefore there is a
possibility that the breast-fed baby may be affected.
If you have not told your doctor about any of these things, tell them before you take
Taking other medicines
Tell your doctor or pharmacist if you are taking any other medicines, including any
that you get without a prescription from your pharmacy, supermarket or health food
Some medicines and BETALOC may interfere with each other. These include:
other beta-blocker medicines, including beta-blocker eye drops.
calcium channel blockers or calcium antagonists, medicines used to treat high blood
pressure and angina, for example verapamil and diltiazem
medicines used to treat high blood pressure, for example clonidine, hydralazine, and
medicines used to treat abnormal or irregular heartbeat, for example amiodarone, disopyramide
medicines used to treat arthritis, pain, or inflammation, for example indomethacin
warfarin, a medicine used to prevent blood clots
digoxin, a medicine used to treat heart failure
medicines used to treat diabetes
cimetidine, a medicine used to treat stomach ulcers
medicines used to treat bacterial infections, for example rifampicin
medicines used to treat depression
monoamine-oxidase inhibitors (MAOIs).
These medicines may be affected by BETALOC or may affect how well it works. You may
need to take different amounts of your medicine, or you may need to take different
medicines. Your doctor will advise you.
Your doctor and pharmacist have more information on medicines to be careful with or
avoid while taking BETALOC.
If you have not told your doctor about any of these things, tell them before you take
How to take BETALOC
Follow all directions given to you by your doctor or pharmacist carefully.
They may differ from the information contained in this leaflet.
If you do not understand the instructions on the pack, ask your doctor or pharmacist
How much to take
For high blood pressure:
The usual starting dose is one 50mg or 100mg tablet once a day for one week.
The dose is then usually increased to 50mg or 100mg once or twice daily.
Your doctor may tell you to take a different amount of BETALOC.
Follow your doctor's instructions carefully.
If you are taking other prescription medicines which lower blood pressure, your doctor
may need to change the dose of them to obtain the best results for you.
For angina pectoris:
The usual dose is 50mg or 100mg taken two or three times a day.
After myocardial infarction (heart attack):
The usual dose is 100mg taken twice a day, often starting with a lower dose for 2
For migraine prevention:
The usual dose is 100-150 mg a day, taken in divided doses morning and evening.
Ask your doctor or pharmacist if you are unsure of the correct dose for you.
They will tell you exactly how much to take.
How to take it
Swallow the tablet with a glass of fluid.
When to take BETALOC
Take your medicine at about the same time each day before or after food.
Taking it at the same time each day will have the best effect. It will also help you
remember when to take it.
How long to take BETALOC
Continue taking your medicine for as long as your doctor tells you. This medicine
helps to control your condition, but does not cure it.
It is important to keep taking your medicine even if you feel well.
DO NOT STOP TAKING BETALOC TABLETS SUDDENLY.
The dose needs to be reduced slowly over 7 to 14 days to make sure that your condition
does not get worse. Your doctor will tell you how to gradually reduce the dose before
If you forget to take it
If it is almost time for your next dose, skip the dose you missed and take your next
dose when you are meant to.
Otherwise, take it as soon as you remember, and then go back to taking your tablets
as you would normally.
Do not take a double dose to make up for the dose that you missed.
If you are not sure what to do, ask your doctor or pharmacist.
If you have trouble remembering when to take your medicine, ask your pharmacist for
Telephone your doctor, the Poisons Information Centre (13 11 26) or go to Accident
and Emergency at your nearest hospital immediately if you think that you or anyone
else may have taken too much BETALOC. Do this even if there are no signs of discomfort
or poisoning. You may need urgent medical attention.
If you take too many BETALOC tablets your blood pressure may drop too far. You will
feel faint or faint, and your heart rate will also slow down. You may also have nausea,
vomiting, and convulsions. In extreme cases, serious heart and lung problems may occur.
While you are using BETALOC
Things you must do
Be sure to keep all of your doctor's appointments so that your progress can be checked.
Elderly patients especially need to be monitored to stop their blood pressure falling
If you become pregnant while taking BETALOC, tell your doctor immediately.
If you have a severe allergic reaction to foods, medicines or insect stings, tell
your doctor immediately.
If you have a history of allergies, there is a chance that BETALOC may cause allergic
reactions to be worse and harder to treat.
If you feel light-headed, dizzy or faint when getting out of bed or standing up, get
You may feel light-headed or dizzy when you begin to take BETALOC. This is because
your blood pressure has fallen suddenly.
Standing up slowly, especially when you get up from bed or chairs, will help your
body get used to the change in position and blood pressure. If this problem gets worse
or continues, talk to your doctor.
Make sure you drink enough water during exercise and hot weather when you are taking
BETALOC, especially if you sweat a lot.
If you do not drink enough water while taking BETALOC, you may feel faint or light
headed or sick. This is because your blood pressure is dropping too much. If you continue
to feel unwell, tell your doctor.
If you are being treated for diabetes, make sure you check your blood sugar level
regularly and report any changes to your doctor.
BETALOC may change how well your diabetes is controlled. It may also cover up some
of the symptoms of low blood sugar (hypoglycaemia). BETALOC may increase the time
your body takes to recover from low blood sugar. Your doses of diabetic medicines,
including insulin, may need to change.
If you are about to be started on any new medicine, remind your doctor and pharmacist
that you are taking BETALOC.
Tell any doctors, dentists, and pharmacists who are treating you that you are taking
If you plan to have surgery (even at the dentist) that needs an anaesthetic, tell
your doctor or dentist that you are taking BETALOC.
If you have to have any medical tests while you are taking BETALOC, tell your doctor.
BETALOC may affect the results of some tests.
Things you must not do
Do not stop taking BETALOC without checking with your doctor.
Your doctor may want you to gradually reduce the amount of BETALOC you are taking
before stopping completely. This may help reduce the possibility of your condition
Do not give BETALOC to anyone else even if they have the same condition as you.
Do not use BETALOC to treat any other complaints unless your doctor tells you to.
Things to be careful of
Be careful driving or operating machinery until you know how BETALOC affects you.
As with other beta-blocker medicines, BETALOC may cause dizziness, light-headedness,
tiredness, or drowsiness in some people. Make sure you know how you react to BETALOC
before you drive a car, operate machinery, or do anything else that could be dangerous
if you are dizzy or light-headed.
Be careful drinking alcohol while you are taking BETALOC.
If you drink alcohol, dizziness or light-headedness may be worse.
Dress warmly during cold weather, especially if you will be outside for a long time
(for example when playing winter sports).
BETALOC, like other beta-blocker medicines, may make you more sensitive to cold temperatures,
especially if you have circulation problems.
Tell your doctor or pharmacist as soon as possible if you do not feel well while you
are taking BETALOC.
All medicines can have side effects. Sometimes they are serious, most of the time
they are not. You may need medical treatment if you get some of the side effects.
If you are over 65 years of age you may have an increased chance of getting side effects.
Ask your doctor to answer any questions you may have.
Tell your doctor if you notice any of the following and they worry you:
headache, tiredness, drowsiness, weakness, or lack of energy
aches and pains, painful joints
nausea (feeling sick), vomiting
stomach upset, diarrhoea or constipation, weight gain
dry mouth, changes in taste sensation
difficulty sleeping, nightmares
confusion, short-term memory loss, inability to concentrate
increased sweating, runny or blocked nose
These side effects are usually mild.
Tell your doctor immediately if you notice any of the following:
dizziness, lightheadedness or fainting especially on standing up, which may be due
to low blood pressure.
tingling or "pins and needles"
coldness, burning, numbness or pain in the arms and/or legs
skin rash or worsening of psoriasis
sunburn happening more quickly than usual
abnormal thinking or hallucinations
buzzing or ringing in the ears, deafness
irritated eyes or blurred vision
constant "flu-like" symptoms with tiredness or lack of energy
unusual bleeding or bruising.
These are serious side effects. You may need urgent medical attention. Serious side
effects are rare.
If any of the following happen, tell your doctor immediately or go to Accident and
Emergency at your nearest hospital:
shortness of breath, being less able to exercise
swelling of the ankles, feet or legs
chest tightness, wheezing, noisy breathing, difficulty breathing
chest pain, changes in heart rate or palpitations
swelling of the face, lips, tongue or throat which may cause difficulty swallowing
yellowing of the skin or eyes (jaundice), generally feeling unwell.
These are very serious side effects. You may need urgent medical attention or hospitalisation.
These side effects are rare.
Other side effects not listed here may occur in some patients. Tell your doctor or
pharmacist if you notice anything that is making you feel unwell.
Do not be alarmed by this list of possible side effects.
You may not experience any of them.
After using it
Keep your tablets in the blister pack until it is time to take them.
If you take BETALOC out of the blister pack it will not keep well.
Keep the tablets in a cool dry place where the temperature stays below 30°C.
Do not store it or any other medicine in the bathroom or near a sink. Do not leave
it in the car or on a window sill.
Heat and dampness can destroy some medicines.
Keep it where young children cannot reach it.
A locked cupboard at least one-and-a-half metres above the ground is a good place
to store medicines.
If your doctor tells you to stop taking them, or you find that the expiry date has
passed, ask your pharmacist what to do with any tablets you have left over.
What BETALOC looks like
BETALOC 50 mg tablets are white to off-white, circular with a diameter of 8 mm, scored
and marked A/BB on one side. The score line is only there to help you break the tablet
if you have difficulty swallowing it whole.
BETALOC 100 mg tablets are white to off-white, circular with a diameter of 10 mm,
scored and marked A/ME on one side. The tablet can be divided into equal halves by
breaking along the score line.
Each BETALOC tablet contains:
Metoprolol tartrate 50mg or 100mg as the active ingredient,
Colloidal anhydrous silica
Sodium starch glycollate
Magnesium stearate (E 572)
AstraZeneca Pty Ltd
ABN 54 009 682 311
66 Talavera Road
MACQUARIE PARK NSW 2113
Telephone: 1800 805 342
Australian Registration Number
Betaloc 50mg - Aust R 12065
Blister pack of 100 tablets
Betaloc 100mg - Aust R 12384
Blister pack of 60 tablets
This leaflet was prepared in November 2017.
BETALOC® is a trade mark of the AstraZeneca group of companies.
© AstraZeneca 2017