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4. Clinical particulars
Posology and method of administration
Special Populations
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The safety and efficacy of Strattera in children under 6 years of age have not been established. Therefore Strattera should not be used in children under 6 years of age.
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Children under six years of age:
The safety and efficacy of Strattera in children under 6 years of age have not been established. Therefore Strattera should not be used in children under 6 years of age (see section 4.4).
4.4 Special warnings and precautions for use
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Sudden death and pre-existing structural cardiac abnormalities or other serious heart problems
Sudden death has been reported in children and adolescents with structural cardiac abnormalities who were taking atomoxetine at usual doses. Although some serious structural cardiac abnormalities alone carry an increased risk of sudden death, atomoxetine should only be used with caution in children or adolescents with known serious structural cardiac abnormalities and in consultation with a cardiac specialist.
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Suicide-related behaviour: Suicide related behaviour (suicide attempts and suicidal ideation) has been reported in patients treated with atomoxetine. In double blind clinical trials, suicide related behaviours occurred at a frequency of 0.44% in were uncommon but more frequently observed among children and adolescents treated with atomoxetine treated patients (6 out of 1357 patients treated, one case of suicide attempt and five of suicidal ideation). Therecompared to those treated with placebo, where there were no events in the placebo group (n=851). The age range of children experiencing these events was 7 to 12 years. It should be noted that the number of adolescent patients included in the clinical trials was low. Patients who are being treated for ADHD should be carefully monitored for the appearance or worsening of suicide related behaviour.
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Psychotic or manic symptoms: Treatment emergent psychotic or manic symptoms, e.g., hallucinations, delusional thinking, mania or agitation in children and adolescents without a prior history of psychotic illness or mania can be caused by atomoxetine at usual doses. If such symptoms occur, consideration should be given to a possible causal role of atomoxetine, and discontinuation of treatment should be considered. The possibility that Strattera will cause the exacerbation of pre-existing psychotic or manic symptoms cannot be excluded.
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Aggressive behaviour, hostility or emotional lability: Hostility (predominantly aggression, oppositional behaviour and anger) and emotional lability were more frequently observed in clinical trials among children and adolescents treated with Strattera compared to those treated with placebo. Patients should be closely monitored for the appearance or worsening of aggressive behaviour, hostility or emotional lability.
Patients who are being treated for ADHD should be carefully monitored for the appearance or worsening of suicide related behaviour, hostility and emotional lability. As with other psychotropic medication, the possibility of rare, serious psychiatric adverse effects cannot be excluded.
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Children under six years of age: Strattera should not be used in patients less than six years of age as efficacy and safety have not been established in this age group.
4.5 Interaction with other medicinal products and other forms of interaction
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Salbutamol: Atomoxetine should be administered with caution to patients being treated with high dose nebulised or systemically administered (oral or intravenous) salbutamol (or other beta2 agonists) because the action of salbutamol on the cardiovascular system can be potentiated. Systemically administered Salbutamol (600 mg i.v. over 2 hrs) induced increases in heart rate and blood pressure. These effects were potentiated by atomoxetine (60 mg twice daily for 5 days) and were most marked after the initial coadministration of salbutamol and atomoxetine. In a study of healthy Asian adults who were extensive atomoxetine metabolisers, the effects on blood pressure and heart rate of a standard inhaled dose of salbutamol (200 mg) were not clinically significant compared to intravenous administration and not increased by the short term coadministration of atomoxetine (80 mg once daily for 5 days). Heart rate after multiple inhalations of salbutamol (800 mg) was similar in the presence or absence of atomoxetine.
4.8 Undesirable effects
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Children and adolescents: Abdominal painIn paediatric placebo-controlled trials, headache, abdominal pain1 and decreased appetite are the adverse events most commonly associated with atomoxetine, and are reported by about 19%, 18% and 16% of patients respectively, but seldom lead to drug discontinuation (discontinuation rates are 0.3 1% for headache, 0.2 % for abdominal pain and 0.0% for decreased appetite). These effects are Abdominal pain and decreased appetite are usually transient.
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Nausea or, vomiting and somnolence2 can occur in about 9% and 10% to 11% of patients respectively, particularly during the first month of therapy. However, these episodes were usually mild to moderate in severity and transient, and did not result in a significant number of discontinuation from therapy (discontinuation raterates £ 0.5%).
In paediatric placebo‑controlled trials, patients taking atomoxetine experienced a mean increase in heart rate of about 6 beats/minute and mean increases in systolic and diastolic blood pressure of about 2 mm Hg compared with placebo. In adult placebo‑controlled trials, patients taking atomoxetine experienced a mean increase in heart rate of 65 beats/minute and mean increases in systolic (about 32 mm Hg) and diastolic (about 1 mm Hg) blood pressures compared with placebo.
Because of its effect on noradrenergic tone, orthostatic hypotension (0.2%, N=7) and syncope (0.8%, N=26) have been reported in patients taking atomoxetine. Atomoxetine should be used with caution in any condition that may predispose patients to hypotension.
NOTE: Table changed in full (please see SPC):
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CYP2D6 poor metabolisers (PM): The following adverse events occurred in at least 2% of CYP2D6 poor metaboliser (PM) patients and were either twice as frequent or statistically significantly more frequent in PM patients compared with CYP2D6 extensive metaboliser (EM) patients: appetite decreased (24.1% of PMs, 17.0% of EMs); insomnia (10.5% of PMs, 6.8% of EMs);combined (including insomnia, middle insomnia and initial insomnia, 14.9% of PMs, 9.7% of EMs); depression combined (including depression, major depression, depressive symptom, depressed mood and dysphoria, 6.5% of PMs and 4.1% of EMs), weight decreased (7.3% of PMs, 4.4% of EMs), constipation 6.8% of PMs, 4.3% of EMs); tremor (4.5% of PMs, 0.9% of EMs); sedation (3.9% of PMs, 2.1% of EMs); excoriation (3.9% of PMs, 1.7% of EMs); enuresis (3.0% of PMs, 1.2% of EMs); depressed mood (3.0% of PMs, 1.0% of EMs); tremor (5.1% of PMs, 1.1% of EMs); early morning awakening (3.0% of PMs, 1.1% of EMs); conjunctivitis (3.02.5% of PMs, 1.52% of EMs); syncope (2.15% of PMs, 0.7% of EMs); early morning awakening (2.3% of PMs, 0.8% of EMs); mydriasis (2.50% of PMs, 0.76% of EMs). The following events did not meet above criteria but were reported by more PM patients than EM patients:is noteworthy: generalised anxiety (2.5disorder (0.8% of PMs, 2.2 and 0.1% of EMs); depression (2.5% of PMs, 1.9% of EMs). In addition, in trials lasting up to 10 weeks, weight loss was more pronounced in PM patients (mean of 0.6 kg in EM and 1.1kg in PM).
Adults:
In adults, the adverse events reported most frequently with atomoxetine treatment were gastrointestinal or genitourinary and insomnia.
NOTE: Table changed in full (please see SPC):
5. PHARMACOLOGICAL PROPERTIES
5.1 Pharmacodynamic properties
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Strattera has been studied in trials involving in over 40005000 children and adolescents with ADHD. The acute efficacy of Strattera in the treatment of ADHD was initially established in six randomised, double-blind, placebo-controlled trials of six to nine weeks duration.
10. DATE OF REVISION OF THE TEXT
New date:
22 October 2008
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