Ritalin : Ritalin is indicated as a part of a comprehensive treatment programme for attention-deficit hyperactivity disorder (ADHD) in children aged 6 years of age and over when remedial measures alone prove insufficient. Treatment must be under the supervision of a specialist in childhood behavioural disorders. Diagnosis should be made according to DSM criteria or the guidelines in ICD and should be based on a complete history and evaluation of the patient. Diagnosis cannot be made solely on the presence of one or more symptom.
The specific aetiology of this syndrome is unknown, and there is no single diagnostic test. Adequate diagnosis requires the use of medical and specialised psychological, educational and social resources.
A comprehensive treatment programme typically includes psychological, educational and social measures as well as pharmacotherapy and is aimed at stabilising children with a behavioural syndrome characterised by symptoms which may include chronic history of short attention span, distractibility, emotional lability, impulsivity, moderate to severe hyperactivity, minor neurological signs and abnormal EEG. Learning may or may not be impaired.
Methylphenidate treatment is not indicated in all children with this syndrome and the decision to use the drug must be based on a very thorough assessment of the severity and the chronicity of the child’s symptoms in relation to the child’s age.
Appropriate educational placement is essential, and psychosocial intervention is generally necessary. Where remedial measures alone prove insufficient, the decision to prescribe a stimulant must be based on rigorous assessment of the severity of the child’s symptoms. The use of methylphenidate should always be used in the way according to the licensed indication and according to the prescribing/diagnostics guidelines.
Treatment must be initiated under the supervision of a specialist in childhood and/or adolescent behavioural disorders
Prior to prescribing, it is necessary to conduct a baseline evaluation of a patient’s cardiovascular status including blood pressure and heart rate. A comprehensive history should document concomitant medications, past and present co-morbid medical and psychiatric disorders or symptoms, family history of sudden cardiac/unexplained death and accurate recording of pre-treatment height and weight on a growth chart (see sections 4.3 and 4.4).
Growth, psychiatric and cardiovascular status should be continuously monitored (see section 4.4).
• Blood pressure and pulse should be recorded on a centile chart at each adjustment of dose and then at least every 6 months;
• Height, weight and appetite should be recorded at least 6 monthly with maintenance of a growth chart;
• Development of de novo or worsening of pre-existing psychiatric disorders should be monitored at every adjustment of dose and then at least every 6 months and at every visit.
Patients should be monitored for the risk of diversion, misuse and abuse of methylphenidate.
Ritalin Dose titration
Careful dose titration is necessary at the start of treatment with methylphenidate. Dose titration should be started at the lowest possible dose.
The maximum daily dose of Ritalin is 60mg.
Other strengths of this medicinal product and other methylphenidate containing products may be available.
Children: (over 6 years). Begin with 5mg once or twice daily (e.g. at breakfast and lunch), increasing the dose and frequency of administration if necessary by weekly increments of 5-10mg in the daily dose. Doses above 60mg daily are not recommended. The total daily dose should be administered in divided doses. Ritalin is not indicated in children less than 6 years of age.
If the effect of the drug wears off too early in the evening, disturbed behaviour and/or inability to go to sleep may recur. A small evening dose may help to solve this problem.
Ritalin Long term (more than 12 months) use in children and adolescents
The safety and efficacy of long term use of methylphenidate has not been systematically evaluated in controlled trials. Methylphenidate treatment should not and need not, be indefinite. Methylphenidate treatment is usually discontinued during or after puberty. The physician who elects to use methylphenidate for extended periods (over 12 months) in children and adolescents with ADHD should periodically re-evaluate the long term usefulness of the drug for the individual patient with trial periods off medication to assess the patient’s functioning without pharmacotherapy. It is recommended that methylphenidate is de-challenged at least once yearly to assess the child’s condition (preferable during school holidays). Improvement may be sustained when the drug is either temporarily or permanently discontinued.
Dose reduction and discontinuation
Treatment must be stopped if the symptoms do not improve after appropriate dosage adjustment over a one-month period. If paradoxical aggravation of symptoms or other serious adverse events occur, the dosage should be reduced or discontinued.
Ritalin Tablets are not licensed for use in adults with ADHD. Safety and efficacy have not yet been established in this age group.
Methylphenidate should not be used in the elderly. Safety and efficacy has not been established in this age group.
Children under 6 years of age
Methylphenidate should not be used in children under the age of 6 years. Safety and efficacy in this age group has not been established.
Ritalin has not been studied in patients with hepatic impairment. Caution should be exercised in these patients.
Ritalin has not been studied in patients with renal impairment. Caution should be exercised in these patients.
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