The following undesirable phenomena noted with the use of moxifloxacin are distributed according to the frequency of occurrence according to the following gradation: often (≥ 1/100 to <1/10), infrequently (≥ 1/1000 to <1/100), rarely (≥ 1 / 10000 to <1/1000), very rarely (<1/10000).
Undesirable phenomena classified as "often" occurred with a frequency below 3%, except for nausea and diarrhea.
From the cardiovascular system: interval lengthening QT (often - in patients with concomitant hypokalemia, infrequently - in the remaining patients); infrequently - tachycardia and vasodilation ("tides" of blood to the face), a feeling of palpitations; rarely - lowering blood pressure, increasing blood pressure, fainting, ventricular tachyarrhythmias; very rarely - nonspecific arrhythmias (including extrasystole), polymorphic ventricular tachycardia ("torsade de pointes") or cardiac arrest, predominantly in persons with conditions predisposing to arrhythmias, such as clinically significant bradycardia, acute myocardial ischemia.
From the respiratory system: infrequently - shortness of breath (including asthmatic condition).
From the gastrointestinal tract: often - nausea, vomiting, abdominal pain, diarrhea; infrequently - anorexia, constipation, dyspepsia, flatulence,gastroenteritis (except erosive gastroenteritis), increased amylase activity, decreased appetite and reduced food intake; rarely - dysphagia, stomatitis, pseudomembranous colitis (in very rare cases associated with life-threatening complications).
From the liver and bile ducts: often - increased activity of "liver" transaminases; infrequently - violations of liver function (including increased lactate dehydrogenase activity), increased bilirubin concentration, increased activity of gamma-glutamyltranspeptidase and alkaline phosphatase; rarely - jaundice, hepatitis (mostly cholestatic); very rarely - fulminant hepatitis, potentially leading to life-threatening liver failure (including fatal cases).
From the side of the central nervous system and the peripheral nervous system: often - dizziness, headache; infrequently - confusion, disorientation, vertigo, drowsiness, tremor, paresthesia, dysesthesia, sleep disturbances, disorders of taste sensitivity (including very rare cases of agevia); rarely - hypoesthesia, pathological dreams, impaired coordination (including gait disturbance due to dizziness,in very rare cases leading to trauma from falling, especially in elderly patients), convulsive seizures with various clinical manifestations (including seizures "grand mal"), disorders of attention, speech disorders, amnesia, peripheral neuropathy or polyneuropathy; violation of the sense of smell, including anosmia; very rarely hyperesthesia.
Mental disorders: infrequently - feelings of anxiety, increased psychomotor activity, agitation, rarely - emotional lability, depression (possibly behavior with a tendency to self-harm, such as suicidal thoughts or suicidal attempts), hallucinations; very rarely - depersonalization, psychotic reactions (potentially manifested in behavior with a tendency to self-harm, such as suicidal thoughts or suicidal attempts).
From the side of the organ of vision: infrequent - a disorder of vision (blurred vision, reduced visual acuity, diplopia, especially in combination with dizziness and confusion); very rarely - transient loss of vision (especially against the background of reactions from the central nervous system).
From the side of the hearing organ and labyrinthine disorders: rarely - noise in the ears, hearing impairment, including deafness (usually reversible).
On the part of the hematopoiesis system: infrequently - anemia, leukopenia (including neutropenia), thrombocytopenia, thrombocytosis, prolongation of prothrombin time and a decrease in the international normalized ratio (INR); rarely - change in the concentration of thromboplastin; very rarely - an increase in the concentration of prothrombin and a decrease in INR, a change in the concentration of prothrombin and INR.
From the musculoskeletal system: infrequently - arthralgia, myalgia; rarely - tendonitis, increased muscle tone and cramps, muscle weakness; very rarely - tendon ruptures, arthritis, gait disturbance due to musculoskeletal system damage, increased myasthenia gravis symptoms gravis.
From the side of the kidneys and urinary tract: infrequently - dehydration (caused by diarrhea or decreased fluid intake); rarely - renal dysfunction, kidney failure (as a result of dehydration, which can lead to kidney damage, especially in elderly patients with concomitant renal dysfunction).
From the genitals and the breast: often - candidiasis, vaginitis.
From the skin and subcutaneous tissues: very rarely - bullous skin reactions, for example, Stevens-Johnson syndrome or toxic epidermal necrolysis (potentially life-threatening).
From the immune system: infrequently - allergic reactions, urticaria, pruritus, rash, eosinophilia; rarely anaphylactic / anaphylactoid reactions, angioedema, including laryngeal edema (potentially life-threatening); very rarely - anaphylactic shock (including life-threatening).
From the side of metabolism: infrequently hyperlipidemia; rarely hyperglycemia, hyperuricemia.
Infectious and parasitic diseases: often - fungal superinfections.
General disorders and disorders at the site of administration: infrequent - general malaise (including symptoms of poor health, nonspecific pain and sweating); rarely - swelling.
The frequency of development of the following adverse reactions was higher in the group receiving the stepwise therapy:
often - increased activity of gamma-glutamyltransferase; infrequently - ventricular tachyarrhythmias, lowering of arterial pressure, edema, pseudomembranous colitis (in very rare cases associated with life-threatening complications), seizures with various clinical manifestations (including "grand mal" seizures), hallucinations, impaired renal function, renal failure (as a result of dehydration, which can lead to kidney damage, especially in elderly patients with pre-existing impaired renal function).