Exhibit 4.13 THIS INSTRUMENT is made by way of deed on 6 June 2006 BY: PROTHERICS PLC (No.02459087) whose registered office is at The Heath Business and Technical Park, Runcorn, Cheshire WA7 4QF (the "COMPANY") WHEREAS the Company has, pursuant to its...Unsecured Convertible Loan Notes Agreement • July 31st, 2006 • Protherics PLC • Pharmaceutical preparations • London
