To ask the Secretary of State for Health if he plans to investigate the extent of Methylphenidate prescribing in the UK. [130259]
Information is collected on the number of prescription items of all Methylphenidate drugs dispensed in the community. The data include prescriptions prescribed in general practitioner practices, and prescriptions prescribed in hospitals that have been dispensed in the community. Private prescriptions, and prescriptions dispensed in hospitals are not included. Numbers of prescriptions in England for the years 1997 to 2002 are set out in the table.
Items (Thousand) | |
1997 | 92.1 |
1998 | 126.6 |
1999 | 158.0 |
2000 | 186.2 |
2001 | 208.5 |
2002 | 254.0 |
To ask the Secretary of State for Health what the (a) short and (b) long-term adverse effects are described with Methylphenidate. [130260]
Methylphenidate (sold in the UK as Ritalin, Equasym and Concerta XL) is licensed for use in children over six years of age as part of a comprehensive treatment programme for attention deficit hyperactivity disorder, where remedial measures alone prove insufficient.
The most common short-term adverse effects generally occur at the beginning of treatment, and include central nervous system effects, such as nervousness and insomnia, and gastro-intestinal effects, such as abdominal pain, nausea and vomiting.
The long-term safety and efficacy profiles of methylphenidate are not fully known. This is reflected in the product information of Ritalin provided to prescribers which advises that patients requiring long-term therapy should be carefully monitored. It warns of the risk of moderately reduced weight gain and slight growth retardation with the long-term use of stimulants in children and that careful monitoring of growth is recommended. It also recommends that blood tests should be performed periodically during long-term use.