His most important work was Kachef Eroumouz fi eharh-El-aquakir ou El-alchbab (Revealing the mysteries and effects of drugs and plants),[1] which is a treatise on medical subject classified in alphabetical order.
This book was very successful in Algeria and Maghreb, and more generally throughout all of the Arab world, and influenced Islamic medicine.
[2] The physician and historian Nicholas Lucien Leclerc writes that he can be considered as the last major representative of Arab medicine.
In his book "Revealing the mysteries and the effects of drugs and plants", Abd El Razzaq Al-Jazaïri informs us that he collected certain pharmacological knowledge in Cairo during his pilgrimage to Mecca, in 1130 AH (i.e. during the year 1717 and 1718 of the Gregorian calendar).
The manuscript of the national library of Algiers has as a subtitle drawn in red ink:"Fourth volume of the book on simple medicines, description of their name - Work of the respectable Abd El Razzaq Ibn Mouhammed Al-Jazaïri (May God grant him missericorde, grant him his forgiveness and give him access to the highest degrees)"According to Gabriel Colin, this shows clearly that the book 'Revealing the mysteries and the effects of drugs and plants' is only a small part of the work of Abd El Razzaq Al-Jazaïri.