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Tenormin (Atenolol)


Tenormin is a selective adrenoceptor blocking agent which used in cardiology and provides antihypertensive, antianginal, and antiarrhythmic action. Tenormin acts only to beta1-receptos and almost does not affect organs containing beta2-adrenoceptors. Therefore, unlike non-selective adrenoceptor blocking agents, Atenolol has a good tolerance and rarely causes unwanted reactions of the body.

In case of the regular application of Tenormin the patient feels better work of the entire cardiovascular system: myocardial oxygen demand is reduced, the frequency of the heart beat is lowered at rest as well as during the physical activity, and minute volume of blood is reduced.

The hypotensive action of Atenolol is slowly developed and reaches its peak only in 2 weeks after the beginning of the drug use. But, even after the end of the drug use, the patient is diagnosed a normal arterial pressure for a long period of time.

All positive effects of Tenormin are started in 3-4 days, and are kept only during the regular prolonged consumption of the pills.

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Directions for the use

Tenormin is directed for prophylaxis and treatment of such cardiovascular diseases as:

- Arterial hypertension

- Acute hypertonic crisis

- Ischemic heart disease

- Cardiac angina

- Myocardial infarction

- Arrhythmia

- Heart hurry

Tenormin may be prescribed as a solo course as well as an additional drug in complex therapy of the cardiovascular diseases.


The dosage scheme of Tenormin is determined individually on the basis of the previous examination of the clinical image of the disease. Depending on the severity level of the disease, age of the patient, and sensitivity to Atenolol , an individual dosage is prescribed.

- The treatment is started from the minimal dose of Tenormin 25 mg a day

- The pills are used once a day before meals, at any time

- If necessary, the everyday dose of Tenormin is increased by 50 mg every week.

- The maximal dose of Atenolol is 200 mg a day.

- Tenormin 200 mg is taken 2-3 times.

Patients with chronic renal failure need the adjustment of the Tenormin dose. Usually, patients are prescribed the dose of 50 mg once per 2 days. This way, the active ingredients are completely excreted from the body and a stable therapeutic effect is kept, although it is weaker than during the everyday use of the drug. In combination with complex therapy the dose of Tenormin should be adjusted to reduce the probability of the overdose and side effects.

The use of Atenolol with diuretics leads to the increase of the therapeutic effect of both drugs and a sudden decrease of the arterial reaction. In case of the simultaneous use of Tenormin with insulin by patient with pancreatic diabetes a converse effects and sudden increase of the arterial pressure are possible.

Side effects

The Tenormin side effects are possible during the non-controlled use of the drug and abuse of the daily dose. In this case, the patient may have the following side effects:

- Gastro-intestinal tract: nausea, constipation, diarrhea, dry mouth

- Central nervous system: dizziness, headache, sleep disorder, depression

- Endocrine system: low potency, hypoglycemic state of patients with pancreatic diabetes

In case of the side effect development, it is necessary to control their intensity. If the course of the side effects does not cause discomfort, and they pass mildly, a medical aid is not needed. Usually, the side effects are cleared up in 1 week after the beginning of the treatment. If the side effects bother you, you should see a doctor.

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