UK permanent residents in England do not pay the real cost of the medicines and so for some prescribed medicines that can be bought over the counter without a prescription, for example aspirin, it can be much cheaper to purchase these without a prescription. UK permanent residents in England who must pay can (instead of paying for each medical item individually) purchase a three-month Prescription Prepayment Certificate (PPC) costing £29.10. This saves the patient money where the patient needs three or more items in three months. There is also a 12-month PPC certificate costing £104.00 which saves patient's money if 12 or more items are needed in 12 months. There are no prescription charges anywhere in the UK for medicines administered at a hospital, by a doctor or at an NHS walk-in centre.