asked the Secretary of State for Social Services if she will list in the Official Report the volume of phenothiazine based drugs used in the treatment of schizophrenia prescribed in the National Health Service in each of the last five years.

I regret that statistical information in this form is not available. No statistics are maintained about prescribing for particular conditions because this is not given on the prescription form. Such information as is available relates only to the average quantities of tablets, capsules, syrups, per prescription and the total number of prescriptions for particular drugs issued by general practitioners and dispensed in the pharmaceutical services. No statistics about prescribing in hospitals are maintained centrally at the present time.