The drug "Relenza" is available in the form of a dosage powder for inhalation. The drug contains zanamivir. Relenza medication is described as a highly selective and strong inhibitor of the enzyme of the (superficial) influenza virus. The tool has an effect in the extracellular space. Due to its activity, the reproduction of both viral types (influenza B and A) is reduced. In practice, there has been no development of drug resistance. When penetrating the body, a fairly low absorption of the drug is noted. When inhaled, not more than 20% of the used dose is absorbed. After approximately 1.25 hours, the maximum concentration of the drug is noted. With repeated inhalations, absorption is also negligible. The drug is distributed through the respiratory tract. The drug is not metabolized, excreted in unchanged form through the kidneys.
Contraindications
Means "Relenza" instruction for use prohibits the appointment for pathologies in the respiratory system complicated by bronchospasm, with hypersensitivity, with lactation, pregnancy.
Method of use
Medication "Relenza" (instructions for use warns about this) is prescribed only by oral inhalation. To obtain a therapeutic effect, the device supplied with the drug should be used.
For the treatment of adults and children from the age of five, two inhalations (5 mg) are prescribed twice a day. The duration of the course is five days. On a day, the dosage is not more than twenty milligrams. To obtain the maximum result, treatment should begin with the manifestation of the
first signs of pathology. For elderly patients, dose adjustment is not required. For preventive purposes, the Relenza medicine (the instructions for use contain such information) is recommended for two inhalations once a day. The duration of the course is ten days. On the day, the dosage is not more than 10 mg. The duration of prevention is increased to a month, if the danger of infection persists for ten days.
Side effect
Means "Relenza" (instructions for use warns about this) can provoke allergies, swelling of the face or larynx, difficulty in breathing, bronchospasm. Undesirable consequences include urticaria, skin reactions, toxic necrolysis, polymorphic erythema, and others.
Medication "Relenza". Instruction Price. Additional Information
Subject to the instructions of a specialist, an accidental overdose is practically excluded. Upon receipt of a high dose, side effects were not registered. If allergic reactions occur in the form of bronchospasm or edema, therapy or prophylaxis should be stopped by contacting a doctor. Patients with pathology of the respiratory system should have short-range bronchodilators as a means of first aid. In the case of psychoneurotic reactions, the ratio of the further risk of their amplification with the expected effect of therapy should be assessed. The cost of the medication is from 835 rubles.