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Betalok ZOK instructions for use

Betalok ZOK instructions for use

The drug Betalok ZOK belongs to the group of beta-blockers and will be used in medicine in order to normalize the functioning of the cardiovascular system and lower blood pressure.

Release form and composition of the drug

The drug Betalok ZOK is available in the form of tablets for oral administration. The main active ingredient of the tablet is metoprolol succinate. Each tablet is white or almost white, oval-shaped, biconvex with a notch on both sides. The drug is available in blisters of 14 and 30 pieces, which are packed in a cardboard box.

Pharmacological properties of the drug

This drug is a beta-blocker with a slow release of the main active ingredient.

Metoprolol, which is part of the tablets, suppresses the effect of catecholamines on the cardiovascular system, thereby eliminating such unpleasant symptoms in a patient as tachycardia , high blood pressure, anxiety and chest pain. Due to the fact that the drug has the properties of prolonged release of the main active ingredient Betalok ZOK retains its therapeutic effect for up to 24 hours.

The use of this drug in patients suffering from hypertension is observed a steady decrease in blood pressure, not only in a state of complete rest, but also during exercise.

With regular long-term use of pills, patients note an improvement in overall well-being, a decrease in the severity of the clinical symptoms of heart failure, angina pectoris, and hypertension.

Indications for use

Tablets Betalok ZOK prescribed to patients for the treatment and prevention of the following conditions:

  • Comprehensive treatment of arterial hypertension;
  • Stenradia;
  • Prevention of recurrent myocardial infarction for individuals with a genetic predisposition to this pathology;
  • Symptomatic treatment of stable chronic heart failure of a chronic course with impaired systolic function of the left ventricle;
  • In order to prevent migraine attacks;
  • Violations of the heart and blood vessels, which are accompanied by severe tachycardia;
  • Heart rhythm disorders;
  • Atrial fibrillation, ventricular extrasystoles;
  • Supraventricular tachycardia.


Tablets are not prescribed for the treatment of patients with such disorders and pathologies:

  • Chronic heart failure in the stage of decompensation;
  • AV blockade 2 and 3 degrees;
  • Cardiogenic shock;
  • Hypotension;
  • Severe peripheral circulatory disorders;
  • Suspected acute myocardial infarction;
  • Age up to 18 years;
  • Individual intolerance to the components of the drug;
  • Hypersensitivity to drugs from the group of beta-blockers.

The drug with particular caution should be taken in patients with impaired liver and kidney function, diabetes, metabolic acidosis, bronchial asthma.

Dosage and administration

The dosage of the drug and the duration of the course of treatment is determined by the doctor strictly for each individual patient, taking into account many features of his body, so that there is no risk of developing bradycardia during therapy with the drug.

In patients with arterial hypertension, it is recommended that patients take 1 tablet of Betalok ZOK once a day, while the daily dosage of the drug should not exceed 50-100 mg.

For the treatment and prevention of stenocardia, the patient is prescribed no more than 200 mg of the drug per day, depending on the severity of the clinical symptoms of the disease, body weight and other factors.

For the treatment of heart failure in violation of the systolic function of the left ventricle, the drug may be prescribed to patients only if it has not exacerbated the condition for the past 1.5 months.

For violations of the heart rhythm tablets Betalok ZOK administered 1 time per day with a dosage of not more than 100 mg. The duration of the course of treatment is determined by the doctor, depending on the severity of the violation.

The prophylactic dose of the drug for the prevention of migraine or recurrent myocardial infarction ranges from 100 to 200 mg of Betalok per day.

The tablet is recommended to be taken in the morning after waking up, before breakfast. The drug is not chewed, and immediately swallow, drinking a sufficient amount of liquid.

For patients with impaired renal or hepatic function, the dose is adjusted individually, and the treatment is carried out under the supervision of a physician.

Drug overdose

If the dosage specified by the physician is not observed and the patient’s dose is significantly exceeded, the patient develops symptoms of overdose, which in high doses may even be fatal. The most frequent clinical manifestations of overdose with this drug are:

  • Violation of the respiratory system;
  • A strong decrease in blood pressure;
  • Bradycardia;
  • Respiratory depression, respiratory arrest;
  • Development of heart failure;
  • Nausea and vomiting;
  • Violation of consciousness, loss of consciousness;
  • Growing weakness;
  • Tremor of the limbs, the development of seizures;
  • Increased blood glucose and potassium;
  • Violation of the kidneys and liver;
  • Cardiogenic shock.

If you simultaneously take Betalok ZOK with alcoholic beverages, the likelihood of an overdose of the drug increases significantly, and its symptoms can be observed as early as 20 minutes after taking the pill.

Treatment of symptomatic overdose, but more often the patient is simply washed the stomach, given to take activated charcoal and leave under the supervision of a physician.

When cardiac arrest or respiratory arrest, resuscitation is urgently needed.

Use of the drug during pregnancy and breastfeeding

Tablets Betalok ZOK not prescribed for the treatment of pregnant women or nursing mothers. Studies have shown that the use of beta-blockers during pregnancy and lactation can lead to a decrease in blood pressure and the development of bradycardia in the fetus or infant. Before starting therapy, you should consult with your doctor and in no case do not self-medicate.

Side effects

As a rule, the tablets of Betalok ZOK are well tolerated by patients, while respecting the prescribed dose. In rare cases, with individual hypersensitivity to beta-blockers may develop the following side effects:

  • Headaches and dizziness;
  • Pain in the heart;
  • Slowing heart rate;
  • Lowering blood pressure;
  • Weakness and shortness of breath;
  • Drowsiness or anxiety;
  • Consciousness and apathy;
  • Nausea, vomiting, constipation;
  • Dry mucous membranes;
  • Rash on the skin in rare cases, increased sweating.

The interaction of the drug with other drugs

The drug Betalok ZOK can not be taken orally at the same time as barbiturates because of the high risk of side effects and symptoms of overdose.

The simultaneous use of this drug with Amiodarone can lead to the development of sinus bradycardia.

Concurrent use of Betaloka with a group of nonsteroidal anti-invasive drugs can weaken the antihypertensive effect of beta-blockers, which should be taken into account and not prescribed drugs of these groups at the same time.

One-time use of Betalok ZOK with adrenaline led to a pronounced increase in blood pressure, as described in medicine and pharmacology.

Patients with diabetes who receive therapy with hypoglycemic drugs along with the tablets Betalok ZOK, you need to adjust the daily dose of diabetic drugs.

With the simultaneous use of tablets with cardiac glycosides in patients in some cases, bradycardia may develop.

special instructions

It is impossible to abruptly stop treatment with this drug, as this may lead to the development of heart failure. After improving the patient's condition, the doctor gradually reduces the daily dose of Betalok tablets.

Patients who are to undergo surgery should be sure to inform their doctor that they are taking the drug Betalok ZOK, since the simultaneous use of general anesthesia with this drug increases the risk of developing bradycardia, a sharp decrease in blood pressure and death.

During the period of treatment with Betalok ZOK, patients should avoid driving vehicles or controlling complex mechanisms, since beta-blockers in high doses can reduce concentration.

Storage and vacation conditions in pharmacies

The drug is available in pharmacies without prescriptions. Store tablets should be at a temperature not higher than 30 degrees, avoiding direct sunlight. The shelf life of the tablets Betalok ZOK is 2 years from the date of manufacture, which is indicated on the package. After this period, you can not take the drug!

Betalok Analogs

Analogs on the active substance (metoprolol):

  • Vazokardin
  • Corvitol
  • Metozok
  • Metocard
  • Metocore
  • Metoprolol
  • Egilok
  • Egilok retard

Betalok price

Betalok ZOK tablets 25 mg, 30 pcs. - from 130 to 164 rubles

Betalok ZOK tablets 50 mg, 30 pcs. - 240 to 345 rubles

Betalok ZOK tablets 100 mg, 30 pcs. - 350 to 480 rubles

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