Consumer Medicine Information
Metoprolol tartrate tablets
WHAT IS IN THIS LEAFLET
This leaflet answers some common questions about Metohexal.
It does not contain all the available information. It does not take the place of talking to your doctor or pharmacist.
All medicines have risks and benefits. Your doctor has weighed the risk of you taking this medicine 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 METOHEXAL IS USED FOR
This medicine is used to treat:
high blood pressure (hypertension).
heart attack (myocardial infarction).
prevent severe chest pain (angina pectoris).
It contains the active ingredient metoprolol tartrate.
Metohexal belongs to a group of medicines called beta-blockers.
It works by affecting the body’s response to some nerve impulses, especially in the heart. 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, causing blood pressure to fall.
Ask your doctor if you have any questions about why this medicine has been prescribed for you.
Your doctor may have prescribed it for another reason.
There is no evidence that Metohexal is addictive.
This medicine is available only with a doctor’s prescription.
There is not enough information to recommend the use of this medicine for children.
BEFORE YOU TAKE METOHEXAL
When you must not take it
Do not take this medicine if you have an allergy to:
metoprolol tartrate, the active ingredient, or to any of the other ingredients listed at the end of this leaflet under Product Description
any other similar medicines such as other ‘beta-blockers’.
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.
Do not take this medicine if you have or have had any of the following medical conditions:
asthma, difficulty breathing or other lung problems, or have had them in the past
a history of allergic problems, e.g. hay fever
low blood pressure
a very slow heart beat (less than 45-50 beats/minute)
heart failure or other heart conditions
a severe blood vessel disorder causing poor circulation in the arms and legs
sudden loss of consciousness sometimes
phaeochromocytoma (a rare tumour of the adrenal gland) which is not already being treated with other medicines.
Do not take this medicine after the expiry date printed on the pack 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 Metohexal to children. The safety and effectiveness of Metohexal 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
Tell your doctor if you have allergies to any other medicines, foods, preservatives or dyes.
Tell your doctor if you have or have had any of the following medical conditions:
any other heart problems
certain types of angina, such as Prinzmetal angina or variant angina
kidney or liver problems
an overactive thyroid gland
Tell your doctor if you are pregnant or plan to become pregnant or are breastfeeding. Your doctor can discuss with you the risks and benefits involved.
If you have not told your doctor about any of the above, tell him/her before you start taking Metohexal.
Taking other medicines
Tell your doctor if you are taking any other medicines, including any that you get without a prescription from your pharmacy, supermarket or health food shop.
Some medicines and Metohexal may interfere with each other. These include:
other beta-blocker medicines, including beta-blocker eye drops
calcium channel blockers or calcium antagonists, used to treat high blood pressure and angina, for example verapamil, diltiazem and nifedipine
certain medicines used to treat abnormal or irregular heartbeat, for example disopyramide and quinidine
clonidine, used to treat high blood pressure
insulin and tablets used to treat diabetes
monoamine-oxidase inhibitors (MAOIs), used to treat depression
cimetidine, used to treat stomach ulcers or reflux
certain medicines used to relieve pain, swelling and other symptoms of inflammation, including arthritis, such as indomethacin
warfarin, a medicine used to prevent blood clots
certain anaesthetics used during surgery
rifampicin, used to treat tuberculosis
ritonavir, an antiviral medicine
diphenhydramine, an antihistamine
terbinafine, used to treat fungal infections
SSRIs such as paroxetine, fluoxetine and sertraline.
These medicines may be affected by Metohexal, or may affect how well it works. You may need different amounts of your medicines, or you may need to take different medicines.
Your doctor and pharmacist have more information on medicines to be careful with or avoid while taking this medicine.
HOW TO TAKE METOHEXAL
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, ask your doctor or pharmacist for help.
How much to take
Hypertension (high blood pressure)
The usual dosage is 50mg to 100mg either once or twice daily. Your doctor may start you on a low dose and increase it over a period of time.
Angina pectoris (chest pain)
The usual dosage is 50mg to 100mg two to three times daily.
Myocardial infarction (heart attack)
Your doctor may start you on 50mg twice daily for two days and then continue with 100mg twice daily.
The usual dose is 100mg to 150mg each day, divided into two doses (morning and evening)
The daily dosage should not exceed 400mg.
Ask your doctor or pharmacist if you are unsure of the correct dose for you.
They will tell you exactly how much to take.
Follow the instructions they give you.
If you take the wrong dose, Metohexal may not work as well and your problem may not improve.
How to take it
Swallow the tablet with a glass of fluid.
When to take Metohexal
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.
If you need to break Metohexal, hold tablet with both hands and snap along break line.
How long to take Metohexal
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.
If you forget to take it
Take your dose as soon as you remember, and continue to take it as you would normally.
If it is almost time for your next dose, skip the dose you missed and take your next dose when you are meant to.
Do not take a double dose to make up for the dose you missed.
This may increase the chance of you getting an unwanted side effect.
If you are not sure what to do, ask your doctor or pharmacist.
If you have trouble remembering to take your medicine, ask your pharmacist for some hints.
If you take too much (overdose)
Immediately telephone your doctor or the Poisons Information Centre (telephone Australia 13 11 26 or New Zealand 0800 POISON or 0800 764766 0800 764766) for advice, or go to Accident and Emergency at your nearest hospital, if you think you or anyone else may have taken too much Metohexal.
Do this even if there are no signs of discomfort or poisoning.
You may need urgent medical attention.
Symptoms of an overdose may include dizziness or light-headedness. Your heartbeat may slow down.
WHILE YOU ARE TAKING METOHEXAL
Things you must do
If you are being treated for diabetes, make sure you check your blood sugar level regularly and report any changes to your doctor. Metohexal may change how well your diabetes is controlled. It may also cover up some of the symptoms of low blood sugar (hypoglycaemia). Metohexal may increase the time your body takes to recover from low blood sugar. Your doses of diabetic medicine, including insulin, may need to change.
Tell your doctor immediately if you develop a severe allergic reaction to any food, medicine or insect sting while taking Metohexal.
Make sure that you drink enough water during exercise and hot weather when you are taking Metohexal, especially if you sweat a lot. If you do not drink enough water while taking Metohexal, you may feel faint or light-headed or sick. This is because your blood pressure is dropping suddenly. If you continue to feel unwell, tell your doctor.
If you feel light-headed, get up slowly when getting out of bed or standing up. You may feel light-headed or dizzy because your blood pressure is falling 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.
Elderly patients especially need to be monitored to stop their blood pressure falling too far.
If you are about to be started on any new medicine, remind your doctor and pharmacist that you are taking Metohexal.
Tell any other doctors, dentists, and pharmacists who treat you that you are taking this medicine.
If you are going to have surgery, tell the surgeon or anaesthetist that you are taking this medicine.
It may affect other medicines used during surgery.
If you become pregnant while taking this medicine, tell your doctor immediately.
If you are about to have any blood tests, tell your doctor that you are taking this medicine.
It may interfere with the results of some tests.
Things you must not do
Do not take Metohexal to treat any other complaints unless your doctor tells you to.
Do not give your medicine to anyone else, even if they have the same condition as you.
Do not stop taking your medicine or lower the dosage without checking with your doctor.
Do not stop taking this medicine suddenly. By stopping suddenly, your angina may worsen or other heart complications may occur. Your doctor may want you to gradually reduce the amount of Metohexal you are taking before stopping completely.
Things to be careful of
Be careful driving or operating machinery until you know how Metohexal affects you. This medicine may cause dizziness, headaches, and tiredness in some people. If you have any of these symptoms, do not drive, operate machinery or do anything else that could be dangerous.
Be careful when drinking alcohol while you are taking this medicine. If you drink alcohol, dizziness or light headedness may be worse.
Dress warmly during the cold weather. You may feel colder, especially if you will be outside for a long time (for example when playing winter sports). Metohexal, 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 Metohexal.
All medicines can have side effects. Sometimes they are serious, most of the time they are not. You may need urgent medical attention if you get some side effects.
Do not be alarmed by this list of possible side effects. You may not experience any of them.
Ask your doctor or pharmacist to answer any questions you may have.
Tell your doctor if you notice any of the following and they worry you:
tiredness, drowsiness, headache, weakness, or lack of energy
aches and pains, painful joints
muscle cramps and weakness
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 are mild side effects of the medicine.
Tell your doctor immediately if you notice any of the following:
dizziness, light headedness (sometimes with fainting) especially on standing up, which may be due to low blood pressure
skin reactions (e.g. rash, itching, worsening of psoriasis)
irritated eyes (red, runny, itchy or dry), visual disturbances (e.g. blurred vision)
numbness in the arms and legs
buzzing and ringing in the ears, difficulty hearing
tingling or “pins and needles”
sunburn happening more quickly than usual
abnormal thinking or hallucinations
constant “flu-like” symptoms with tiredness or lack of energy
The above list includes serious side effects that may require medical attention. Serious side effects are rare.
If any of the following happen, stop taking Metohexal, and tell your doctor immediately, or go to Accident and Emergency at your nearest hospital:
swelling of the face, lips, mouth or throat, which may cause difficulty in swallowing or breathing
shortness of breath, sometimes with tiredness and reduced ability to exercise, and swelling of the feet or legs due to fluid build up
chest pain, chest tightness, changes in heart rate or palpitations
yellowing of the skin or eyes (jaundice), generally feeling unwell.
The above list includes very serious side effects. You may need urgent medical attention or hospitalisation. All of these side effects are very rare.
Tell your doctor or pharmacist if you notice anything else that is making you feel unwell.
Other side effects not listed above may also occur in some people.
AFTER TAKING METOHEXAL
Keep Metohexal in the original container.
If you take it out of its original container it may not keep well.
Keep your medicine in a cool dry place where the temperature stays below 25°C and away from direct sunlight.
Do not store Metohexal or any other medicine in the bathroom or near a sink. Do not leave it on a window sill or in the car. Heat and dampness can destroy some medicines.
Keep it where 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 this medicine or the expiry date has passed, ask your pharmacist what to do with any medicine that is left over.
What it looks like
Metohexal 50mg: white, round tablets, scored on one side. Available in blisters of 100 tablets.
Metohexal 100mg: white, round tablets, scored on one side. Available in blisters of 60 tablets.
Metohexal 50mg – 50mg metoprolol tartrate
Metohexal 100mg – 100mg metoprolol tartrate
colloidal anhydrous silica
calcium hydrogen phosphate
Sandoz Pty Ltd
ABN 60 075 449 553
Level 4, 100 Harris St
Pyrmont NSW 2009
Tel: 1800 634 500 1800 634 500
Novartis New Zealand Ltd
Private Bag 65904 Mairangi Bay
Tel: 0800 354 335 0800 354 335
This leaflet was revised in May 2010.
Australian Register Numbers
50mg tablets: AUST R 62560
100mg tablets: AUST R 62561
Published by MIMS/myDr August 2010
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