PT - JOURNAL ARTICLE ED - , TI - Medicines that cost less over the counter AID - 10.1136/dtb.27.11.41 DP - 1989 May 30 TA - Drug and Therapeutics Bulletin PG - 41--44 VI - 27 IP - 11 4099 - http://dtb.bmj.com/content/27/11/41.short 4100 - http://dtb.bmj.com/content/27/11/41.full SO - Drug Ther Bull1989 May 30; 27 AB - Many medicines which can be prescribed in the Health Service can be bought directly over the counter (OTC) for less than the prescription charge (£2.80). Without asking a pharmacist, patients or doctors cannot easily discover which medicines are cheaper OTC, but those who pay prescription charges may want to know, to save time and money; those exempt from the charges can save only time. The quantity of medicine required and the pack sizes available clearly determine any price comparison; very few medicines are cheaper OTC if large quantities are used. Prescription is in any case desirable when an OTC medicine is needed long-term. The occasion to buy from a pharmacy arises when the doctor or the pharmacist tells the patient that the medicine is cheaper OTC, or when the patient already knows this.