Merck Sharp & Dohme's Demser (metirosine) 250mg tablets are now available on a named-patient basis. The company says that this is because the licences for the product have been voluntarily removed in the UK. Demser is available free of charge, says the company, and supplies on a named-patient basis can be obtained by contacting MSD research administration (tel 01992 467272). The MSD medical information department should be contacted for further information (same telephone number).