Al-RaziAl-Razi is best known for his role in medicine during the Golden age of Islam. He worked mainly on diseases in children and elders, chemicals used in making medicine, problems related to eye, and got build a hospital in Rey, Tehran. In short, he was a complete doctor. Al-Razi is also known as Rhazes in the west. He was given the title of ‘father of pediatrics’.

Biography – Life Span

Al-Razi was born in Rey, Tehran – the capital of Iran in 853 AD. He has quite a long name, ‘Abu Bakr Muhammad Ibn Zakarya Al-Razi’. After his basic studies, he moved to Baghdad to study medicine. He studied medicine at hospitals and translated the Greek books written on it. This enabled him to write books over two-hundred. With much of the practice at a hospital in Baghdad, he returned to Rey. He was appointed the chief physician and the head of Rey hospitals by the ruling caliph (king) Mansur ibn Ishaq.

Al-Razi taught medicine to students from different parts of the world. Therefore, he was called by them as ‘Shaikh’ – which means a noble person.  He was very kind to his patients and treated them free of cost. Besides, he was also a good player of chess. Hence, he wrote a book on it and named it ‘A Delightful Book about Chess’. Moreover, Al-Razi has classified substances into vegetables, animals, and minerals. Apart from it, he also wrote a monograph on the diseases of children.

In metaphysics – the field of study of religion and material things, he believed that it stood on five rules named God, soul, matter, time and space. However, his religious views were rejected by Al-Biruni, who was the Muslim philosopher of his time and wrote a book on his life. He also worked on the eye, its functions and diseases. Al-Razi suffered from blindness. His optical nerve in the brain was damaged which sends signals from eye to brain. Al-Razi spent his last days in blindness and died in 925 AD at Rey, Samanid Empire in Iran.

Discoveries and Contributions

Al-Razi’s long services in medicine and optics led him to lay the groundwork for Muslim Scholars to expand these subjects. Avicenna (Ibn Sina) and Al-Biruni followed him and revised most of his works. Among many of his discoveries like chemical instruments to separate one chemical from others, creams for skin use, bottles, and flasks to use in laboratories.

Al-Razi’s sincere work rewarded in the form of fame among Muslim and western scholars alike. He is known for the following discoveries and contributions:

  • He improved the distillation method of alcohol.
  • Al-Razi was the first to first process the opium and give it as anesthesia to patients on which the surgery was performed.
  • He wrote a book on alchemy, named ‘Al-Asrar (means the secret)’, which described the identification of chemicals obtained from minerals, animals, and plants for use in medical purposes. Also, he described various equipment used in chemistry and how to use them.
  • He wrote books on viral diseases like Small Pox – a disease that comes with fever and causes rashes on the face. The other disease is Measles – a disease in which eyes remain hot and appear spots on the body.
  • He was also the first to know that the pupil is the part of an eye that first reacts to light.

Interesting Facts

  1. He was given the titles father of pediatrics, the doctor of doctors, and the founder of the study of eyes.
  2. The ruling caliph made him the chief physician and head of Rey hospitals.
  3. His book Al-Mansuri which was written on surgery became part of the curriculum of western universities.

Cite this Page

Abdul Wahab, "Al-Razi," in Science4Fun, November 28, 2020, https://science4fun.info/al-razi/.