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Table 1 Extended-release preparations of methylphenidate currently available in the UK

From: Clinical use of a modified release methylphenidate in the treatment of childhood attention deficit hyperactivity disorder

Brand name

UK marketing company

Technology

IR:DR ratio

Medikinet XL

Flynn Pharma Ltd

Multiparticulate bead system

50:50

Equasym XL

Shire Pharmaceuticals Ltd

Multiparticulate bead system

30:70

Concerta XL

Janssen-Cilag Ltd

Osmotic release oral system

22:78

  1. DR = delayed release; IR = immediate release.
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Annals of General Psychiatry

ISSN: 1744-859X