SweeIndividual risk:
With depression, there is a likelihood of suicidal attempts, which can persist until the onset of persistent remission. As with other drugs of similar pharmacological action (antidepressants), individual cases of suicidal thoughts of nutritional behavior were described against the background of therapyfluoxetype, or soon after its termination, careful monitoring of patients at risk should be necessary. Physicians should convince patients to immediately report any thoughts and feelings of concern.
Despite the fact that the effect of fluoxetine on the occurrence of such cases has not been established, data from pooled studies of the use of antidepressants in mental disorders have revealed an increased risk of suicidal ideation and / or suicidal behavior in young patients (younger than 25 years) compared with placebo.
Drug therapy of patients with high risk should be under close medical supervision. Doctors should encourage patients of different ages to report any unpleasant thoughts and feelings that arise at any time of therapy.
In studies on adult patients with major depressive disorder in both groups taking placebo and fluoxetine, the following risk factors for suicide were identified.
Before treatment:
more severe course of depression; the presence of thoughts of death.
InTreatment time:
weighting depression;
development of insomnia.
During the treatment with fluoxetine, the risk factor was the development of severe psychomotor agitation (eg, agitation, akathisia, panic).
The presence or occurrence of these conditions before or during therapy is the basis for strengthening clinical control or adjusting the treatment.
Cardiovascular effects:
In view of the possible risk associated with taking fluoxetine, lengthening the interval QT. Exetin should be used with caution in patients with congenital syndrome of interval lengthening QT. acquired lengthening interval syndrome QT (for example, with variable intake of fluoxetine with drugs that extend the interval QT), if there is an indication in the anamnesis of an increase in the duration of the interval QT at the patient's relatives. with other clinical conditions predisposing to the development of arrhythmia, for example, hypokalemia or hypomagnesemia) or with an increase in fluoxetine exposure (for example, with reduced liver function).
SkinI have a rash:
It is reported on the occurrence of skin rash, anaphylactic reactions and progressive systemic disorders, sometimes serious involving the pathological process of the skin, kidneys, liver and lungs in patients taking fluoxetine. If skin rashes or other possible allergic reactions occur, the etiology of which can not be determined, fluoxetine should be withdrawn.
Electroconvulsive therapy (ECT):
There are rare reports of an increase in the duration of seizures in patients taking fluoxetine and receiving ECT. in this regard, it is recommended to be careful.
Epileptic seizures:
As with other antidepressants fluoxetine should be administered with caution to patients who have previously had epileptic seizures.
Maniand: Antidepressants should be used with caution in patients with a history / megina / hypomania. The intake of fluoxetine, like any other antidepressant, must be discontinued if the patient is manic.
Akathisia / psychomotor disturbance:
The use of fluoxetine leads to the development of akathisia, which is manifested subjectively unpleasant sensations or restlessness, the need for constant movement, often without the possibility of sitting or standing still. Most often, such phenomena are observed during the first few weeks of treatment.Patients in whom these symptoms are observed, an increase in the dose of fluoxetine is undesirable.
Tamoxifen:
Fluoxetine, as a potent inhibitor of the CYP2D6 isoenzyme, can lead to a decrease in the concentration of endoxifene, one of the most important active metabolites of tamoxifsna. Therefore, when using tamoxifen, fluoxetine should be avoided.
Weight loss:
With fluoxetine, patients may have a loss of body weight, however, it is proportional to the initial mean body weight.
Hypotatremia:
There were cases of hyponatremia (in some cases, the level of sodium in the blood plasma was less than 110 mmol / l). In most cases, such cases were observed in elderly patients and in patients who received diuretics due to a decrease in the volume of circulating blood.
Glycemic control:
In patients with diabetes, during treatment with fluoxetine, hypoglycemia was noted, and after the drug was withdrawn, hyperglycemia developed. At the beginning or after the end of treatment with fluoxetine, you may need to adjust the doses of insulin and / or hypoglycemic drugs for ingestion.
Hepatic / Renal Failure:
Fluoxetine undergoes intensive metabolism in the liver and is excreted by the kidneys. Pannam with severe impairment of liver function is recommended to prescribe lower s fluoxetine, or prescribe the drug every other day. When fluoxetine was taken at a dose of 20 mg / day for two months, patients with severe renal dysfunction (creatinine clearance <10 ml / min) in need of hemodialysis, there was no difference in fluoxetine and norfluoxetine plasma concentrations from healthy volunteers with normal kidney function.
Mydriaz:
Mydriasis associated with fluoxetine was reported. Caution should be exercised in prescribing fluoxetine to patients with increased intraocular pressure or to patients at risk of developing acute angle-closure glaucoma.
Saint John's wort:
As with other SSRIs, it is possible to develop pharmacodynamic interactions between fluoxetine and products containing St. John's wort, which can lead to an increase in undesirable effects.
Symptoms of cancellation:
Often, with discontinuation of fluoxetine therapy, especially with a sharp withdrawal of the drug, withdrawal symptoms were noted.In clinical trials, approximately 60% of patients developed various side effects when treatment was withdrawn, both in the fluoxetine group and in the placebo group. In the fluoxetine group, 17% of these events were severe, in rpyi ps placebo - 12%.
The risk of developing withdrawal symptoms depends on several factors, including the duration of dose therapy and the rate of dose reduction. The most frequently reported dizziness, sensory disturbances (including paresthesia), sleep disorders (including insomnia and deep sleep), asthenia, anxiety or arousal, nausea and / or vomiting, tremor and headache. Usually, these episodes were mild or moderate, but some patients could have a more pronounced character. In most cases, these phenomena are resolved on their own within two weeks, but sometimes may be longer (2-3 months or more). In this regard, the abolition of therapy with fluoxetine should be carried out gradually within one or two weeks, depending on the patient's condition.
In rare cases, it has been reported associated with fluoxetine, the development of serotonin syndrome, or malignant neurolepticsyndrome (muscle rigidity, hyperthermia, extrapyramidal neurological disorders, and catatonic manifestations), especially when combined with other delayed-trigonal medications (including those containing L-tryptophan) and / or neuroleptics. Since these syndromes can lead to life-threatening conditions, fluoxetine therapy should be stopped in case of a combination of symptoms: hyperthermia, rigidity, myoclonus, autonomic nervous system disorder with the development of fluctuations in vital signs, changes in mental state, including confusion, irritability, extreme excitement possible development of delirium and coma, and appoint appropriate therapy.
Increased bleeding:
SSRIs and SSRIs, including fluoxetine, can increase the tendency to bleeding, including in the gastrointestinal tract. Therefore, caution should be exercised when administering fluoxetine to patients who are simultaneously receiving anticoagulants and / or medicines that can alter the properties of platelets (eg non-steroidal anti-inflammatory drugs, acetylsalicylic acid), or patients who already have increased bleeding.
All patients taking antidepressants for any indication should be monitored appropriately, and signs of clinical impairment, suicidal intentions, and unusual behavioral changes should be carefully monitored, especially during the first months of therapy or during dosage changes (increase or decrease).
The following symptoms were observed in adults and children taking antidepressants in the treatment of major depressive disorder, as well as with other mental and non-psychic disorders: anxiety, agitation, panic attacks, insomnia, irritability, hostility, aggressiveness, impulsiveness, akathisia (restlessness), hypomania , mania.
Despite the fact that the causal relationship between the appearance of such symptoms and the worsening of depression and / or the appearance of suicidal intentions is not established, there is a fear that such symptoms may be precursors of the appearance of suicidal intentions.