Tanatril (imidapril)

How does it work?

Tanatril tablets contain the active ingredient imidapril, which is a type of medicine called an ACE inhibitor.

ACE inhibitors work by blocking the action of a compound in the body called angiotensin converting enzyme (ACE). Normally ACE produces another compound called angiotensin II, as part of the body's natural control of blood pressure. Angiotensin II causes blood vessels to constrict and narrow, which increases the pressure within the blood vessels.

As imidapril blocks the action of ACE, it reduces the production of angiotensin II. This means that the blood vessels are allowed to relax and widen. The overall effect of this is a drop in blood pressure, hence imidapril can be used to lower high blood pressure.

What is it used for?

High blood pressure

Warning!

Some people may experience dizziness caused by low blood pressure in the first few days of taking this medicine and in particular the first dose. For this reason, the first dose should preferably be taken at bedtime. Your doctor may want you to take the first dose of this medicine under medical supervision in hospital if you are aged over 70 years, have low blood pressure, low levels of fluids or salt in your blood (eg due to dehydration), severe or unstable heart failure, kidney problems, or are taking high doses of diuretic medicines, multiple diuretic medicines, or certain other medicines that dilate your blood vessels.

If you feel dizzy during treatment this can be relieved by lying down until the symptoms pass. If affected you should avoid performing potentially hazardous tasks such as driving or operating machinary. If you frequently feel dizzy you should let your doctor know, as your dose of this medicine may need reducing.

Alcohol may enhance the blood pressure lowering effect of this medicine, which can increase dizziness and may increase the risk of fainting.

ACE inhibitors can sometimes cause an allergic reaction called angioedema. This is more likely to occur in black patients. Stop taking this medicine and consult your doctor immediately if you experience difficulty breathing or swallowing, or swelling of your face, lips, tongue, throat, hands, feet or ankles while taking this medicine.

Your blood pressure, kidney function and the amount of potassium in your blood should be regularly monitored while you are taking this medicine.

Use with caution in

Elderly people

Decreased liver function

Decreased kidney function

Narrowing of the arteries that supply blood to the kidneys (renal artery stenosis)

People with low fluid volume or salt levels in the body, eg due to diuretic therapy, low-sodium diet, diarrhoea or vomiting

People taking other medicines for high blood pressure, particularly diuretics (see end of factsheet)

People with hardening of the arteries, eg in the heart (cardiovascular disease), brain (cerebrovascular disease) or legs (peripheral vascular disease)

Narrowing of the main artery of the body (aortic stenosis)

Heart disease characterised by thickening of the internal heart muscle and a blockage inside the heart (hypertrophic obstructive cardiomyopathy)

Severe heart failure

Diabetes

Diseases affecting connective tissue, eg scleroderma, systemic lupus erythematosus (collagen vascular diseases)

People with kidney failure requiring a certain type of haemodialysis (high-flux membrane)

People receiving therapy to remove certain types of fat from the blood using a machine (LDL apheresis)

People undergoing therapy to decrease allergy to bee or wasp stings (desensitisation).

Not to be used in

History of swelling of the lips, face or tongue (angioedema) with no known cause, or caused by previous use of an ACE inhibitor medicine

Hereditary angioedema

Pregnancy

Breastfeeding

This medicine is not recommended for children.

This medicine should not be used if you are allergic to one or any of its ingredients. Please inform your doctor or pharmacist if you have previously experienced such an allergy. If you feel you have experienced an allergic reaction, stop using this medicine and inform your doctor or pharmacist immediately.

Pregnancy and Breastfeeding

Certain medicines should not be used during pregnancy or breastfeeding. However, other medicines may be safely used in pregnancy or breastfeeding providing the benefits to the mother outweigh the risks to the unborn baby. Always inform your doctor if you are pregnant or planning a pregnancy, before using any medicine.

This medicine must not be used during pregnancy as it may be harmful to the unborn baby. Seek further medical advice from your doctor. If you get pregnant while taking this medicine, stop taking it and consult your doctor immediately.

It is not known if this medicine passes into breast milk. The manufacturer states that it should not be taken by women who are breastfeeding. Seek further medical advice from your doctor.

Side effects

Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.

Headache

Dizziness

Dry cough

Dry mouth

Fatigue

Disturbances of the gut such as diarrhoea, constipation, nausea, vomiting, indigestion or abdominal pain

Pain in the muscles or joints

Chest pain (angina)

Pins and needles sensations (paraesthesia)

Feeling of weakness (asthenia)

Low blood pressure (hypotension)

Palpitations

Depression

Rash or itching

Blurred vision

Impotence

Alteration in taste

Increased level of potassium in the blood (hyperkalaemia)

Severe swelling of lips, face, tongue or throat (angioedema - see warning above)

Disorders of the kidney, liver or blood

The side effects listed above may not include all of the side effects reported by the drug's manufacturer. For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.

Go To Next Page>>
The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care or attention by a qualified practitioner. The materials in this web site cannot and should not be used as a basis for diagnosis or choice of treatment. Conditions for use



© Copyright 1998 - 2004 NetDoctor.co.uk - All rights reserved