Exforge HCT 10 mg/320 mg/25 mg film-coated tablets Amlodipin - United Kingdom[英国药品]

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Exforge HCT 10 mg/320 mg/25 mg film-coated tablets Amlodipin

2013-11-02 17:05:25 来源: 作者: 【大中小】浏览:608次评论:0条

For doctors

What is it and how is it used?

Exforge HCT tablets contain three substances called amlodipine, valsartan and hydrochlorothiazide. All of these substances help to control high blood pressure.

Exforge HCT is used to treat high blood pressure in adult patients who are already taking amlodipine, valsartan and hydrochlorothiazide and who may benefit from taking one tablet containing all three substances.

What do you have to consider before using it?

Do not take Exforge HCT

Take special care with Exforge HCT

You must tell your doctor if you think that you are ( or might become) pregnant. Exforge HCT is not recommended in early pregnancy and must not be taken if you are more than 3 months pregnant, as it may cause serious harm to your baby if used at this stage (see section “Pregnancy and breast-feeding”).

The use of Exforge HCT in children and adolescents under 18 years of age is not recommended.

Exforge HCT and older people (age 65 years and older)
Exforge HCT can be used by people aged 65 years and over at the same dose as for other adults and in the same way as they have already taken the three substances called amlodipine, valsartan and hydrochlorothiazide. Elderly patients, particularly those taking the maximum dose of Exforge HCT (10 mg/320 mg/25 mg), should have their blood pressure checked regularly.

Using other medicines
Please tell your doctor or pharmacist if you are using or have recently used any other medicine, including medicines obtained without a prescription. Your doctor may need to change the dose or take other precautions. In some cases you may have to stop using one of the medicines. This is especially important if you are using any of the medicines listed below:

Do not take together with:

Taking Exforge HCT with food and drink
You can take Exforge HCT with or without food.

Pregnancy and breast-feeding
Pregnancy
You must tell your doctor if you think you are ( or might become) pregnant. Your doctor will normally advise you to stop taking Exforge HCT before you become pregnant or as soon as you know you are pregnant and will advise you to take another medicine instead of Exforge HCT. Exforge HCT is not recommended in early pregnancy and must not be taken if you are more than 3 months pregnant, as it may cause serious harm to your baby if it is used after the third month of pregnancy.

Breast-feeding Tell your doctor if you are breast-feeding or about to start breast-feeding. Exforge HCT is not recommended for mothers who are breast-feeding, and your doctor may choose another treatment for you if you wish to breast-feed, especially if your baby is a newborn, or was born prematurely.

Ask your doctor or pharmacist for advice before taking any medicine.

Driving and using machines
As with many other medicines used to treat high blood pressure, this medicine may make you feel dizzy. If you experience this symptom, do not drive or use tools or machines.

How is it used?

Always take this medicine exactly as your doctor has told you. You should check with your doctor if you are not sure. This will help you get the best results and lower the risk of side effects.

The usual dose of Exforge HCT is one tablet per day.

Depending on how you respond to the treatment, your doctor may suggest a higher or lower dose.

If you take more Exforge HCT than you should
If you have accidentally taken too many Exforge HCT tablets, talk to a doctor immediately.You may require medical attention.

If you forget to take Exforge HCT
If you forget to take a dose of this medicine, take it as soon as you remember and then take the next dose at its usual time. If it is almost time for your next dose you should simply take the next tablet at the usual time. Do not take a double dose (two tablets at once) to make up for a forgotten tablet.

If you stop taking Exforge HCT
Stopping your treatment with Exforge HCT may cause your disease to get worse. Do not stop taking your medecine unless your doctor tells you to.

Always take this medicine, even if you are feeling well
People who have high blood pressure often do not notice any signs of the problem. Many feel normal. It is very important that you take this medicine exactly as your doctor tells you to get the best results and reduce the risk of side effects. Keep your appointments with the doctor even if you are feeling well.

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

What are possible side effects?

Like all medicines, Exforge HCT can cause side effects, although not everybody gets them. These side effects may occur with certain frequencies, which are defined as follows: very common: affects more than 1 user in 10
common: affects 1 to 10 users in 100
uncommon: affects 1 to 10 users in 1,000
rare: affects 1 to 10 users in 10,000
very rare: affects less than 1 user in 10,000
not known: frequency cannot be estimated from the available data

Some side effects can be serious and need immediate medical attention:

You should see your doctor immediately if you experience any of the following symptoms: Common

Other possible side effects of Exforge HCT:
Common: Stomach discomfort after meal; tiredness; swelling; low level of potassium in the blood; headache; frequent urination.
Uncommon: Fast heart beat; spinning sensation; vision disorder; stomach discomfort; chest pain; increase of urea nitrogen, creatinine and uric acid in the blood; high level of calcium fat or sodium in the blood; decrease of potassium in the blood; breath odour; diarrhoea; dry mouth; nausea; vomiting; abdominal pain; weight increase; loss of appetite; disturbed sense of taste; back pain; joint swelling; muscle cramps/weakness/pain; pain in extremity; inability to either stand or walk in a normal manner; weakness; abnormal coordination; dizziness on standing up or after exercising; lack of energy; sleep disturbances; tingling or numbness; neuropathy; sleepiness; sudden, temporary loss of consciousness; low blood pressure on standing up; impotence; cough; breathlessness; throat irritation; excessive sweating; itching; swelling, reddening and pain along a vein; skin reddening; trembling. Not known: Changes in blood tests for kidney function, increase of potassium in your blood, low level of red blood cells.

Side effects reported with amlodipine or valsartan or hydrochlorothiazide alone, but not observed with Exforge HCT or observed in a higher frequency:

Amlodipine Common: Palpitations; abdominal pain; nausea; sleepiness; hot flushes.
Uncommon: Ringing noise in ears; change of bowel habit; pain; weight decrease; joint pain; trembling; mood swings; urination disorders; urination at night; breast enlargement in men; runny nose; hair loss; skin eruption; purple skin patches; rash; skin discoloration.
Very rare: Low level of white blood cells and blood platelets; irregular heart beat; heart attack; inflammation of the stomach lining or of the pancreas, gingival overgrowth, abnormal liver function test; liver disorder which can occur together with yellow skin and eyes, or dark-coloured urine; allergic reaction including swelling deeper in the skin and difficulty breathing; high level of sugar in the blood; increased muscle stiffness; skin reaction with skin reddening and peeling, blistering of lips, eyes or mouth; itchy rash; inflammation of blood vessels.
Not known: Stiff limbs and trembling hands.

Valsartan Not known: Abnormal red blood cell test; low level of a certain type of white blood cell and blood platelet; increase of potassium in the blood; increase of creatinine in the blood; abnormal liver function test; allergic reaction including swelling deeper in the skin and difficulty breathing; muscle pain; severely decreased urine output; itching; rash; inflammation of blood vessels.

Hydrochlorothiazide Common: Increase of lipids in the blood.
Uncommon: Low level of magnesium in the blood; rash; itchy rash.
Rare: Low level of blood platelets, sugar in the urine; high level of sugar in the blood; depression; irregular heart beat; abdominal discomfort; constipation; liver disorder which can occur together with yellow skin and eyes, or dark-coloured urine; increased sensitivity of skin to sun; purple skin patches. Very rare: Lack or low level of white blood cells; haemolytic anaemia (abnormal breakdown of red blood cells either in the blood vessels or elsewhere in the body); inflammation of the pancreas; allergic reaction; difficulty breathing, breathlessness; inflammation of the lungs, lupus erythematosus; inflammation of blood vessels; severe skin disease that causes rash, red skin, blistering of the lips, eyes or mouth, skin peeling, fever.

If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.

How should it be stored?

Keep out of the reach and sight of children.
Do not use Exforge HCT after the expiry date which is stated on the carton and blister after EXP. The expiry date refers to the last day of that month.
Do not store above 30°C.
Store in the original package in order to protect from moisture.
Do not use any Exforge HCT pack that is damaged or shows signs of tampering.

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For doctors

What is it?

Exforge HCT is a medicine that contains three active substances, amlodipine, valsartan and hydrochlorothiazide. It is available as tablets containing amlodipine, valsartan and hydrochlorothiazide in the following amounts: 5/160/12.5 mg, 10/160/12.5 mg, 5/160/25 mg, 10/160/25 mg and 10/320/25 mg.

What is it used for?

Exforge HCT is used to treat essential hypertension (high blood pressure) in adults whose blood pressure is already adequately controlled with a combination of amlodipine, valsartan and hydrochlorothiazide. ‘Essential’ means that the hypertension has no obvious cause. The medicine can only be obtained with a prescription.

How is it used?

Exforge HCT is taken by mouth as one tablet once a day, at the same time of the day and preferably in the morning. The dose of Exforge HCT to be used is the same as the doses of three individual active substances that the patient was taking before. The daily dose of Exforge HCT should not exceed 10 mg of amlodipine, 320 mg of valsartan and 25 mg of hydrochlorothiazide.

How does it work?

The three active substances in Exforge HCT are anti-hypertensive medicines that are already in use in the European Union (EU).
Amlodipine is a ‘calcium channel blocker’. It blocks special channels on the surface of cells called calcium channels, through which calcium ions normally enter the cells. When calcium ions enter the cells in the muscles of blood vessel walls, this causes contraction. By reducing the flow of calcium into the cells, amlodipine prevents the cells from contracting and helps the blood vessel walls to relax and widen, thereby reducing blood pressure.
Valsartan is an ‘angiotensin II receptor antagonist’, which means that it blocks the action of a body hormone called angiotensin II. Angiotensin II is a powerful vasoconstrictor (a substance that narrows blood vessels). By blocking the receptors to which angiotensin II normally attaches, valsartan stops the hormone having an effect, allowing the blood vessels to widen and blood pressure to reduce. Hydrochlorothiazide is a diuretic. It works by increasing urine output, reducing the volume of fluid in the blood and lowering the blood pressure.

The combination of the three active substances has an additive effect, reducing the blood pressure more than the individual medicines alone. By lowering the blood pressure, the risks associated with high blood pressure, such as having a stroke, are reduced.

How has it been studied?

Because the combination of the three active substances has been in use for a number of years, the company presented studies showing that the tablet containing all three substances is absorbed in the body in the same way as the separate tablets.
In addition, one main study was carried out in 2,271 patients with moderate to severe hypertension with the highest strength of Exforge HCT (320 mg valsartan, 10 mg amlodipine and 25 mg hydrochlorothiazide). Patients received either Exforge HCT or one of the three combinations containing only two of the active substances for eight weeks. The main measure of effectiveness was the average change in the blood pressure.

What benefits has it shown during the studies?

Treatment with the highest strength of Exforge HCT was more effective at treating hypertension than dual combinations containing any of the two active substances. The average reduction in blood pressure was around 39.7/24.7 mmHg in patients taking Exforge HCT compared with 32/19.7 mmHg, 33.5/21.5 mmHg and 31.5/19.5 mmHg in patients taking valsartan/hydrochlorothiazide, valsartan/amlodipine and hydrochlorothiazide/amlodipine combinations, respectively.

What is the risk associated?

The most common side effects with Exforge HCT (seen in between 1 and 10 patients in 100) are hypokalaemia (low blood potassium levels), dizziness, headache, hypotension (low blood pressure), dyspepsia (heartburn), pollakiuria (abnormally frequent urination), fatigue (tiredness) and oedema (fluid retention). For the full list of all side effects reported with Exforge HCT, see the Package Leaflet.
Exforge HCT should not be used in people who may be hypersensitive (allergic) to the active substances, to other sulfonamides, to dihydropyridine derivatives or to any of the other ingredients in Exforge HCT. It must not be used in women who are more than three months pregnant. It must also not be used in patients who have liver or bile problems (such as jaundice), severe kidney problems, anuria (a condition in which a patient cannot make or pass urine) or in patients undergoing dialysis (a blood clearance technique). Finally, Exforge HCT must not be used in patients with hypokalaemia (low blood potassium levels), hyponatraemia (low blood sodium levels) and hypercalcaemia (high blood calcium levels) that do not respond to treatment and in patients with hyperuricaemia (high blood levels of uric acid) that causes symptoms.

Why has it been approved?

The Committee for Medicinal Products for Human Use (CHMP) noted that patients already taking the three active substances would be more likely to comply with their treatment if prescribed Exforge HCT which combines the three substances in a single tablet. The main study showed the benefit of the highest strength of Exforge HCT in lowering the blood pressure. For all doses, Exforge HCT also met requirements to prove that it was comparable to the combinations of the individual active substances taken seperately. The CHMP therefore decided that Exforge HCT’s benefits are greater than its risks for the treatment of essential hypertension in adults whose blood pressure is already adequately controlled with a combination of amlodipine, valsartan and hydrochlorothiazide. The Committee recommended that Exforge HCT be given marketing authorisation.

Further information

The European Commission granted a marketing authorisation valid throughout the European Union for Exforge HCT to Novartis Europharm Limited on 16 October 2009.

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