Abu Bakr al-Razi
Abū Bakr al-Rāzī, also known as Rhazes, 864 or 865 – 925 or 935 CE, was a Persian physician, philosopher and alchemist who lived during the Islamic Golden Age. He is widely regarded as one of the most important figures in the history of medicine, and also wrote on logic, astronomy and grammar. He is also known for his criticism of religion, especially with regard to the concepts of prophethood and revelation. However, the religio-philosophical aspects of his thought, which also included a belief in five "eternal principles", are fragmentary and only reported by authors who were often hostile to him.
A comprehensive thinker, al-Razi made fundamental and enduring contributions to various fields, which he recorded in over 200 manuscripts, and is particularly remembered for numerous advances in medicine through his observations and discoveries. An early proponent of experimental medicine, he became a successful doctor, and served as chief physician of Baghdad and Ray hospitals. As a teacher of medicine, he attracted students of all backgrounds and interests and was said to be compassionate and devoted to the service of his patients, whether rich or poor. Along with Thābit ibn Qurra, he was one of the first to clinically distinguish between smallpox and measles.
Through translation, his medical works and ideas became known among medieval European practitioners and profoundly influenced medical education in the Latin West. Some volumes of his work Al-Mansuri, namely "On Surgery" and "A General Book on Therapy", became part of the medical curriculum in Western universities. Edward Granville Browne considers him as "probably the greatest and most original of all the Muslim physicians, and one of the most prolific as an author". Additionally, he has been described as the father of pediatrics, and a pioneer of obstetrics and ophthalmology.
Biography
Al-Razi was born in the city of Ray, into a family of Persian stock and was a native speaker of Persian language. Ray was situated on the Great Silk Road that for centuries facilitated trade and cultural exchanges between East and West. It is located on the southern slopes of the Alborz mountain range situated near Tehran, Iran.In his youth, al-Razi moved to Baghdad where he studied and practiced at the local bimaristan. Later, he was invited back to Rey by Mansur ibn Ishaq, then the governor of Ray, and became a bimaristan's head. He dedicated two books on medicine to Mansur ibn Ishaq, The Spiritual Physic and Al-Mansūrī on Medicine. Because of his newly acquired popularity as physician, al-Razi was invited to Baghdad where he assumed the responsibilities of a director in a new hospital named after its founder al-Muʿtaḍid. Under the reign of Al-Mutadid's son, Al-Muktafi al-Razi was commissioned to build a new hospital, which should be the largest of the Abbasid Caliphate. To pick the future hospital's location, al-Razi adopted what is nowadays known as an evidence-based approach suggesting having fresh meat hung in various places throughout the city and to build the hospital where meat took longest to rot.
He spent the last years of his life in his native Rey suffering from glaucoma. His eye affliction started with cataracts and ended in total blindness. The cause of his blindness is uncertain. One account mentioned by Ibn Juljul attributed the cause to a blow to his head by his patron, Mansur ibn Ishaq, for failing to provide proof for his alchemy theories; while Abulfaraj and Casiri claimed that the cause was a diet of beans only. Allegedly, he was approached by a physician offering an ointment to cure his blindness. Al-Razi then asked him how many layers does the eye contain and when he was unable to receive an answer, he declined the treatment stating "my eyes will not be treated by one who does not know the basics of its anatomy".
The lectures of al-Razi attracted many students. As Ibn al-Nadim relates in Fihrist, al-Razi was considered a shaikh, an honorary title given to one entitled to teach and surrounded by several circles of students. When someone raised a question, it was passed on to students of the 'first circle'; if they did not know the answer, it was passed on to those of the 'second circle', and so on. When all students would fail to answer, al-Razi himself would consider the query. Al-Razi was a generous person by nature, with a considerate attitude towards his patients. He was charitable to the poor, treated them without payment in any form, and wrote for them a treatise Man La Yaḥḍuruhu al-Ṭabīb, or Who Has No Physician to Attend Him, with medical advice. One former pupil from Tabaristan came to look after him, but as al-Biruni wrote, al-Razi rewarded him for his intentions and sent him back home, proclaiming that his final days were approaching. According to Biruni, al-Razi died in Rey in 925 sixty years of age. Biruni, who considered al-Razi his mentor, among the first penned a short biography of al-Razi including a bibliography of his numerous works.
Ibn al-Nadim recorded an account by al-Razi of a Chinese student who copied down all of Galen's works in Chinese as al-Razi read them to him out loud after the student learned fluent Arabic in 5 months and attended al-Razi's lectures.
After his death, his fame spread beyond the Middle East to Medieval Europe, and lived on. In an undated catalog of the library at Peterborough Abbey, most likely from the 14th century, al-Razi is listed as a part author of ten books on medicine.
Contributions to medicine
Psychology and psychotherapy
Al-Razi was one of the world's first great medical experts. He is considered the father of psychology and psychotherapy.Smallpox vs. measles
Al-Razi's book "On Smallpox and Measles", is, along with a book of the same name by Thabit ibn Qurra, among the earliest extant books describing smallpox and measles as distinct diseases. Smallpox was not known in ancient Greek medicine. It was likely differentiated from measles and other similar diseases by authors in late antiquity writing in Medieval Greek and Syriac, whose works were known to Thabit and al-Razi.Al-Razi's work was translated into Syriac and then into Greek. It became known in Europe through this translation, as well as Latin translations based on the Greek text, and was later translated into several European languages. Neither the date nor the author of the Syriac and Greek versions is known, but the Greek was created at the request of one of the Byzantine emperors. The anonymous Greek translator of Razi's work used the term λοιμική to describe smallpox, since the ancient Greek language had no word that precisely conveyed this meaning.
Meningitis
Al-Razi compared the outcome of patients with meningitis treated with blood-letting with the outcome of those treated without it to see if blood-letting could help.Pharmacy
Al-Razi contributed in many ways to the early practice of pharmacy by compiling texts, in which he introduces the use of "mercurial ointments" and his development of apparatus such as mortars, flasks, spatulas and phials, which were used in pharmacies until the early twentieth century.Ethics of medicine
On a professional level, al-Razi introduced many practical, progressive, medical and psychological ideas. He attacked charlatans and fake doctors who roamed the cities and countryside selling their nostrums and "cures". At the same time, he warned that even highly educated doctors did not have the answers to all medical problems and could not cure all sicknesses or heal every disease, which was humanly speaking impossible. To become more useful in their services and truer to their calling, al-Razi advised practitioners to keep up with advanced knowledge by continually studying medical books and exposing themselves to new information. He made a distinction between curable and incurable diseases. Pertaining to the latter, he commented that in the case of advanced cases of cancer and leprosy the physician should not be blamed when he could not cure them. To add a humorous note, al-Razi felt great pity for physicians who took care for the well-being of princes, nobility, and women, because they did not obey the doctor's orders to restrict their diet or get medical treatment, thus making it most difficult being their physician.He also wrote the following on medical ethics:
Books and articles on medicine
''[Al-Hawi]''
This 23-volume medical textbook sets the foundation of gynecology, obstetrics, oncology and chemotherapy, and ophthalmic surgery. It also contains considerations and criticism on Aristotle and Plato and expresses innovative views on many subjects. Because of this book alone, many scholars consider al-Razi the greatest medical doctor of the Middle Ages.Al-Hawi is not a formal medical encyclopedia but a posthumous compilation of al-Razi's working notebooks, which included knowledge gathered from other books as well as original observations on diseases and therapies based on his own clinical experience. It is significant since it contains a monograph on smallpox, one of the earliest known. It was translated into Latin in 1279 by Faraj ben Salim, a physician of Sicilian-Jewish origin employed by Charles of Anjou, and after which it had a considerable influence in Europe.
Al-Hawi also criticized the views of Galen after al-Razi had observed many clinical cases that did not follow Galen's descriptions of fevers. For example, he stated that Galen's descriptions of urinary ailments were inaccurate as he had only seen three cases, while al-Razi had studied hundreds of such cases in hospitals of Baghdad and Rey.
''For One Who Has No Physician to Attend Him'' (''Man la Yahduruhu Al-Tabib'') (''من لا يحضره الطبيب'')
Al-Razi was possibly the first Persian doctor to deliberately write a home medical manual directed at the general public. He dedicated it to the poor, the traveller, and the ordinary citizen who could consult it to treat common ailments when a doctor was unavailable. This book is of special interest to the history of pharmacy since similar books were very popular until the 20th century. Al-Razi described in its 36 chapters diets and drug components that can be found in either an apothecary, a marketplace, in well-equipped kitchens, or military camps. Thus, every intelligent person could follow its instructions and prepare the proper recipes with good results.Some of the illnesses treated were headaches, colds, coughing, melancholy and diseases of the eye, ear, and stomach. For example, he prescribed for a feverish headache: "2 parts of duhn of rose, to be mixed with 1 part of vinegar, in which a piece of linen cloth is dipped and compressed on the forehead". He recommended as a laxative, "7 drams of dried violet flowers with 20 pears, macerated and well mixed, then strained. Add to this filtrate 20 drams of sugar for a drink." In cases of melancholy, he invariably recommended prescriptions, which included either poppies or its juice, Cuscuta epithymum or both. For an eye-remedy, he advised myrrh, saffron, and frankincense, 2 drams each, to be mixed with 1 dram of yellow arsenic formed into tablets. Each tablet was to be dissolved in sufficient coriander water and used as eye drops.
;Book for al-Mansur
Al-Razi dedicated this work to his patron Abū Ṣāliḥ al-Manṣūr, the Samanid governor of Ray. It was translated into Latin by Gerard of Cremona around 1180. A Latin translation of it was edited in the 16th century by the Dutch anatomist and physician Andreas Vesalius.