Information:  - A potion (from Latin "potio" "drink") is a magical medicine, drug or poison in liquid form.  - Martindale : The Complete Drug Reference is a reference book published by Pharmaceutical Press listing some 6,000 drugs and medicines used throughout the world , including details of over 180,000 proprietary preparations . It also includes almost 700 disease treatment reviews . It was first published in 1883 under the title Martindale : The Extra Pharmacopoeia . Martindale contains information on drugs in clinical use worldwide , as well as selected investigational and veterinary drugs , herbal and complementary medicines , pharmaceutical excipients , vitamins and nutritional agents , vaccines , radiopharmaceuticals , contrast media and diagnostic agents , medicinal gases , drugs of abuse and recreational drugs , toxic substances , disinfectants , and pesticides .  - A herbal is a book containing the names and descriptions of plants, usually with information on their medicinal, tonic, culinary, toxic, hallucinatory, aromatic, or magical powers, and the legends associated with them. A herbal may also classify the plants it describes, may give recipes for herbal extracts, tinctures, or potions, and sometimes include mineral and animal medicaments in addition to those obtained from plants. Herbals were often illustrated to assist plant identification.  - A tincture is typically an alcoholic extract of plant or animal material or solution of such, or of a low volatility substance (such as iodine and mercurochrome). To qualify as an alcoholic tincture, the extract should have an ethanol percentage of at least 2560% (50120 US proof). Sometimes an alcohol concentration as high as 90% (180 US proof) is used in such a tincture. In herbal medicine, alcoholic tinctures are made with various ethanol concentrations, 25% being the most common.  - Medicine (British English ; American English ) is the science and practice of the diagnosis, treatment, and prevention of disease. The word "medicine" is derived from Latin "medicus", meaning "a physician". Medicine encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness. Contemporary medicine applies biomedical sciences, biomedical research, genetics, and medical technology to diagnose, treat, and prevent injury and disease, typically through pharmaceuticals or surgery, but also through therapies as diverse as psychotherapy, external splints and traction, medical devices, biologics, and ionizing radiation, amongst others.    Given the paragraphs above, decide what entity has the relation 'original language of work' with 'british english'.
The answer to this question is:
martindale: the complete drug reference