If you have to pay for four or more prescription items in three months, or more than 14 items in 12 months, you may find it cheaper to buy a Pre-Payment Certificate. Information on help with health costs, exemption certificates for those entitled and Prescription Pre-Payment Certificates can be found at http://www.nhsbsa.nhs.uk/1127.aspx or alternatively telephone advice is available on 0845 850 0030.