Therapeutic indications:
Methylphenidate is indicated as a part of a comprehensive
treatment programme for attention-deficit hyperactivity disorder
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-IV criteria or
the guidelines in ICD-10.
Dose:
Not recommended for children under 6 years; for those over 6
years, initially 5 mg 1-2 times daily, increased if necessary at
weekly intervals by 5-10 mg daily to max. 60 mg daily in divided
doses; discontinue if no response after 1 month, also suspend
periodically to assess child's condition (usually finally
discontinued during or after puberty). If the effect wears off in
evening (with rebound hyperactivity), a dose at bedtime may be
appropriate (establish need with trial bedtime dose).
Notes
It would now not be normal clinical practice to discontinue
methylphenidate "during or after puberty". The BNF and data
information sheets interpret the "evening dose" slightly
differently. In the BNF, this is clearly stated to be a bedtime
dose. The data sheets, however, describe "a small evening dose" if
the effects wear off too early resulting in disturbed behaviour
and/or inability to go to sleep. Current recommendations in the
literature consistently suggest that the last dose should be given
in the late afternoon (around 4pm).
Available preparations (UK)
- Immediate release:
Ritalin
Equasym - Modified Release:
Concerta XL