Drug House/Pharmacy

Pharmacy is the science and technique of preparing and dispensing drugs It is a health profession that links health sciences with chemical sciences and aims to ensure the safe and effective use of pharmaceutical drugs.

The scope of pharmacy practice includes more traditional roles such as compounding and dispensing medications, and it also includes more modern services related to health care, including clinical services, reviewing medications for safety and efficacy, and providing drug information. Pharmacists, therefore, are the experts on drug therapy and are the primary health professionals who optimize use of medication for the benefit of the patients.

An establishment in which pharmacy (in the first sense) is practiced is called a pharmacy (this term is more common in the United States) or a chemist's (which is more common in Great Britain). In the United States and Canada, drugstores commonly sell drugs, as well as miscellaneous items such as confectionery, cosmetics, office supplies, and magazines and occasionally refreshments and groceries.

Hospital pharmacies are pharmacies usually found within the premises of a hospital. Hospital pharmacies usually stock a larger range of medications, including more specialized and investigational medications (medicines that are being studied, but have not yet been approved), than would be feasible in the community setting. Hospital pharmacies typically provide medications for the hospitalized patients only, and are not retail establishments. They typically do not provide prescription service to the public. Some hospitals do have retail pharmacies within them (see illustration), which sell over-the-counter as well as prescription medications to the public, but these are not the actual hospital pharmacy.

Hospital pharmacist and trained pharmacy technicians compound sterile products for patients including total parenteral nutrition (TPN), and other medications given intravenously e.g. neonatal antibiotics and chemotherapy. This is a complex process that requires adequate training of personnel, quality assurance of products, and adequate facilities. Some hospital pharmacies have decided to outsource high-risk preparations and some other compounding functions to companies that specialize in compounding.