Adverse reactions with the use of escitalopram are observed during the first one to two weeks of treatment and usually significantly weaken as therapy continues and the patients improve.
Frequency of adverse reactions (WHO classification): very often - ≥10%; often - ≥ 1%, but <10%; infrequently - ≥0,1%, but <1%; rarely - ≥ 0.01%, but <0.1%; very rarely - <0.01%, it is not known - there are currently no data on the prevalence of adverse reactions.
The following adverse reactions may occur:
On the part of the blood and lymphatic system: unknown - thrombocytopenia.
Allergic reactions: infrequently - hypersensitivity; very rarely - anaphylactic reactions.
From the central nervous system: very often - drowsiness, headache, tremor, dizziness; often - migraine, paresthesia, sleep disorder; infrequently - extrapyramidal disorders, syncopal conditions, taste disorders; rarely - serotonin syndrome (combination of excitation, tremor, myoclonus and hyperthermia); unknown - dyskinesia, motor disorders, convulsive disorders.
From the psychic sphere: very often - agitation, nervousness; often - decreased libido, violation of orgasm (in women), anxiety, confusion, drowsiness, impaired concentration, strange dreams, amnesia; infrequently - aggression, depersonalization, hallucinations, euphoria, increased libido, bruxism, panic attacks; unknown - mania, suicidal thoughts1, psychomotor agitation, akathisia2.
From the digestive system: very often - nausea, vomiting; often - diarrhea, dry mouth, decreased appetite or vice versa increase, constipation.
From the liver and biliary tract: unknown - hepatitis.
From the skin: very often - excessive sweating, often - skin rash, itching; infrequently - photosensitization, hives, alopecia, purpura; unknown - angioedema, bruising (ecchymosis).
From the cardiovascular system: very often - palpitation: often - tachycardia, arterial hypertension, orthostatic hypotension: rarely - bradycardia, lowering blood pressure, arrhythmia; unknown - interval lengthening QT on the ECG.
On the part of the organs of hematopoiesis: rarely - hemorrhage (eg, gynecological bleeding, gastrointestinal bleeding).
From the sense organs: very often - a violation of accommodation; often - a violation of taste sensations, visual impairment, infrequently - mydriasis, tinnitus (ringing in the ears).
From the respiratory system: often - rhinitis, sinusitis, yawning; infrequently - cough, nosebleed: rarely - dyspnea, tracheitis.
On the part of the reproductive system: often - the violation of sexual function, namely the violation of ejaculation, decreased libido, impotence, menstrual irregularities; infrequently - metrorrhagia, menorrhagia; unknown - galactorrhea, priapism.
From the urinary system: often - painful urination, urinary retention.
Metabolic disorders: often - decreased or increased appetite, weight gain; infrequently - weight loss; rarely - insufficient secretion of antidiuretic hormone (ADH), hyponatremia, hypokalemia; unknown - anorexia2.
From the side of the musculoskeletal system: infrequently - myalgia, arthralgia, increased risk of injuries and fractures.
Laboratory indicators: often - changes in laboratory parameters of liver function; infrequently - increased activity of "hepatic" enzymes, alteration of the electrocardiogram (lengthening of the interval QT), hyponatremia.
Other: often - weakness; infrequently - swelling; rarely - hyperthermia.
1- there are reports of cases of suicidal moods and suicidal behavior at the time of taking escitalopram or immediately after discontinuation of treatment.
2- reports on these phenomena were received in relation to the SSRI treatment class.
During the post-registration period cases of lengthening of the interval QT and ventricular arrhythmias, including ventricular pirouette tachycardia, predominantly in female patients, with hypokalemia or pre-existing lengthening of the interval QT or other cardiovascular diseases.In double-blind, placebo-controlled studies of ECG in healthy volunteers, the change from baseline QTc (correction according to the Friderichia formula) was 4.3 msec at a dose of 10 mg / day and 10.7 msec at 30 mg / day.
Class Effect
Epidemiological studies involving patients aged 50 years or more reported an increased risk of bone fractures in patients receiving SSRIs and tricyclic antidepressants. The mechanism that leads to this risk is unknown.
Symptoms of cancellation after treatment
Stopping the use of SSRIs / SSRIs (selective norepinephrine and serotonin reuptake inhibitors) (especially severe) usually leads to symptoms of "withdrawal". Dizziness, sensitivity disorders (including paresthesia and current sensation), sleep disturbances (including insomnia and bright dreams), agitation or anxiety, nausea and / or vomiting, tremors, confusion, increased sweating, headache, diarrhea, fasting palpitations, emotional instability, irritability and visual impairment.As a rule, these phenomena are of mild or moderate severity and pass independently, but in some patients they can take a more severe form and be more prolonged. It is recommended to gradually phase out the drug by reducing its dose.