Classification of incidence of adverse reactions: very often (≥1/10); often (≥1/100, <1/10); infrequently (≥1/1000, <1/100); rarely (≥1/10 000, <1/1000); very rarely (<1/10 000).
From the nervous system:
often: increased fatigue, drowsiness, sedation, weakness, fatigue, inhibition, impaired coordination of movements;
infrequently: dizziness;
rarely: headache, tremor, stimulating effect.
From the gastrointestinal tract:
rarely: dyspepsia, nausea, vomiting, gastralgia;
very rarely: constipation, dry mouth.
individual cases of decreased appetite and diarrhea.
From the sense organs:
rarely: violation of clarity of visual perception, diplopia, acute labyrinthitis, tinnitus.
From the side of the kidneys and urinary tract:
very rarely: rapid or difficult urination.
From the respiratory system:
rarely: condensation of bronchial secretion and difficulty in sputum discharge, sensation of pressure in the chest, violation of breathing, nasal congestion.
From the cardiovascular system:
rarely: lowering blood pressure (more often in elderly patients), extrasystole.
very rarely: palpitations.
From the side of blood and blood-forming organs:
rarely: hemolytic anemia, thrombocytopenia, agranulocytosis.
From the skin and subcutaneous fat:
rarely: skin rash.
From the immune system:
rarely: photosensitization, anaphylactic shock.