From the cardiovascular system: decreased blood pressure in the chest, rarely-orthostatic hypotension, tachycardia, bradycardia, the appearance of symptoms of heart failure, violation of atrioventricular conduction.
From the nervous system: dizziness, headache, fatigue, drowsiness, convulsive twitching of the muscles of the limbs and lips, rarely - asthenic syndrome, lability of mood, confusion.
From the gastrointestinal tract: nausea, dyspepsia, anorexia, changes in taste, abdominal pain, diarrhea, dry mouth.
From the hematopoiesis: leukopenia, thrombocytopenia, neutropenia, agranulocytosis, anemia (decrease in hemoglobin, erythrocytopenia).
From the respiratory system: dyspnea, bronchospasm, apnea.
Allergic reactions: angio-neurotic edema, skin rashes, itching.
Laboratory indicators: hyperkalemia, hyperuricemia, rarely - increased activity of "liver" transaminases, hyperbilibinemia.
Other: dry cough, decreased potency, rarely - acute renal failure, arthralgia, myalgia, fever, edema (tongue, lips, limbs), impaired fetal kidney development.