The practice and study of medicine in Persia has a long and prolific history. The Iranian academic centers like Jundishapur University (3rd century AD) were a breeding ground for the union among great scientists from different civilizations. These centers successfully followed their predecessors’ theories and greatly extended their scientific research through history.
In recent years, some experimental studies have indeed evaluated medieval Iranian medical remedies using modern scientific methods. These studies raised the possibility of revival of traditional treatments on the basis of evidence-based medicine.
The medical history of ancient Persia can be divided into three distinct periods. The sixth book of Zend-Avesta contains some of the earliest records of history of ancient Iranian medicine. The Vendidad in fact devotes most of the last chapters to medicine.
The Vendidad, one of the surviving texts of the Zend-Avesta, distinguishes three kinds of medicine: medicine by the knife (surgery), medicine by herbs, and medicine by divine words; and the best medicine was, according to the Vendidad, healing by divine words:
Of all the healers O Spitama Zarathustra, namely those who heal with the knife, with herbs, and with sacred incantations, the last one is the most potent as he heals from the very source of diseases.—Ardibesht Yasht
The second epoch covers the era of what is known as Pahlavi literature, where the entire subject of medicine was systematically treated in an interesting tractate incorporated in the encyclopedic work of Dinkart, which listed in altered form some 4333 diseases.
The third era begins with the Achaemenid dynasty, and covers the period of Darius I of Persia, whose interest in medicine was said to be so great that he re-established the school of medicine in Sais, Egypt, which previously had been destroyed, restoring its books and equipment.
The first teaching hospital was the Academy of Gundishapur in the Persian Empire. Some experts go so far as to claim that, "to a very large extent, the credit for the whole hospital system must be given to Persia".
According to the Vendidad, physicians, to prove proficiency, had to cure three patients from the followers of Divyasnan; if they failed, they could not practice medicine. At first glance, this recommendation may appear discriminant and based on human experimentation. But some authors have construed this to mean that, from the beginning, physicians were taught to remove the mental barrier and to treat adversaries as well as friends. Interestingly, physician’s fee for service was based on the patient’s income.
The Iranian science was interrupted by the Arab invasion (630 A.D.). Many schools, universities, and libraries were destroyed, books burned, and scholars killed. Nevertheless, the science of Persia resurfaced during the Islamic period. To save the books from Arab carnage, many Pahlavi scripts were translated into the Arabic, and Iran produced physicians and scientists such as Abū ʿAlī al-Ḥusayn ibn ʿAbd Allāh ibn Sīnā and Muhammad ibn Zakariya al-Razi as well as mathematicians such as Kharazmi and Omar Khayyám. They collected and systematically expanded the Greek, Indian, and Persian ancient medical heritage and made further discoveries.
One of the main roles played by medieval Iranian scholars in the scientific field was the conservation, consolidation, coordination and development of ideas and knowledge in ancient civilizations. Some Iranian Hakim (practitioners) such as Muhammad ibn Zakariya ar-Razi, known to the West as Rhazes, and Ibn Sina, better known as Avicenna, were not only responsible for accumulating all the existing information on medicine of the time, but adding to this knowledge by their own astute observations, experimentation and skills. "Qanoon fel teb of Avicenna" ("The Canon") and "Kitab al-hawi of Razi" ("Continens") were among the central texts in Western medical education from the 13th to the 18th centuries.
In the 14th century, the Persian language medical work Tashrih al-badan (Anatomy of the body), by Mansur ibn Ilyas (c. 1390), contained comprehensive diagrams of the body's structural, nervous and circulatory systems.
Evidence of surgery dates to the 3rd century BC, when the first cranial surgery was performed in the Shahr-e-Sukhteh (Burnt City) in south-eastern Iran. The archaeological studies on the skull of a 13-year-old girl suffering from hydrocephaly indicated that she had undergone cranial surgery to take a part of her skull bone and the girl lived for at least about 6 months after the surgery.
Several documents still exist from which the definitions and treatments of the headache in medieval Persia can be ascertained. These documents give detailed and precise clinical information on the different types of headaches. The medieval physicians listed various signs and symptoms, apparent causes, and hygienic and dietary rules for prevention of headaches. The medieval writings are both accurate and vivid, and they provide long lists of substances used in the treatment of headaches. Many of the approaches of physicians in medieval Persia are accepted today; however, still more of them could be of use to modern medicine.
An antiepileptic drug-therapy plan in medieval Iranian medicine is individualized, given different single and combined drug-therapy with a dosing schedule for each of those. Physicians stress the importance of dose, and route of administration and define a schedule for drug administration. Recent animal experiments confirm the anticonvulsant potency of some of the compounds which are recommended by Medieval Iranian practitioners in epilepsy treatment.
In The Canon of Medicine (c. 1025), Avicenna described numerous mental conditions, including hallucination, insomnia, mania, nightmare, melancholia, dementia, epilepsy, paralysis, stroke, vertigo and tremor.
In the 10th century work of Shahnama, Ferdowsi describes a Caesarean section performed on Rudaba, during which a special wine agent was prepared by a Zoroastrian priest and used as an anesthetic to produce unconsciousness for the operation. Although largely mythical in content, the passage illustrates working knowledge of anesthesia in ancient Persia.
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