Cannabinoids.

Cover of StatPearls“Cannabinoids, broadly speaking, are a class of biological compounds that bind to cannabinoid receptors. They are most frequently sourced from and associated with the plants of the Cannabis genus, including Cannabis sativaCannabis indica, and Cannabis ruderalis.

The earliest known use of cannabinoids dates back 5,000 years ago in modern Romania, while the documentation of the earliest medical dates back to around 400 AD. However, formal extraction, isolation, and structural elucidation of cannabinoids have taken place rather recently in the late 19th and early 20th centuries. Since then, numerous advancements have been made in further isolating naturally occurring cannabinoids, synthesizing artificial equivalents, and discovering the endogenous the endocannabinoid system in mammals, reptiles, fish, and birds.”

https://www.ncbi.nlm.nih.gov/pubmed/32310522

https://www.ncbi.nlm.nih.gov/books/NBK556062/

Historical essay: An Arabic surgeon, Ibn al Quff’s (1232-1286) account on surgical pain relief.

“This is a review of Ibn al Quff’s account of surgical pain relief in his surgical book Al Omdah, in which he mentioned the word anesthetic (Al moukhadder) and the involvement of physician (al tabbaaee) to give mixture of drugs to prevent pain in a surgical condition to relieve the patient from pain or to make surgical management possible.

Hich indicated one rare occasion to such description in Arabic medical texts. Methods of administration of these drugs were inhalation, ingestion and by rectal suppositories.

The drugs used in anesthetic sponges include all the drugs that are recorded in the modern literature of anesthesia. They are as follows: opium, mandrake, Hyocymus albus, belladonna, Cannabis sativus, Cannabisindica, wild lettuce.

The anesthetic sponge, mentioned in many references as an inhalation method, may be of symbolic value to surgery.”

http://www.ncbi.nlm.nih.gov/pubmed/25885079

“Ibn al-Quff (1233-1286 AD), a medieval Arab surgeon and physician. Abū’l-Faraj ibn Ya’qūb ibn Isāq Ibn al-Quff al-Karakī (1233-1286 AD), best known as Ibn al-Quff in the West, was a 13th century Arab physician-surgeon. During his lifetime, Ibn al-Quff made some important contributions to the art of healing. He authored several books and commentaries in the field of medicine, in particular surgery.”  http://www.ncbi.nlm.nih.gov/pubmed/24585631

http://www.thctotalhealthcare.com/category/pain-2/