Yes, Saddam Hussein did use anthrax. During the late 1980s and early 1990s, Iraq had a large-scale program to develop and produce biological weapons, including anthrax. Hussein's regime used anthrax as a deterrent against Iran during the Iran-Iraq war, and it is believed that the Iraqi military developed an operational capability to weaponize anthrax.
Iraq's anthrax program was extensive. Hussein's government established a large-scale, well-funded effort to produce anthrax and other biological weapons. As part of this effort, Iraq constructed a number of facilities to produce, store, and weaponize anthrax. Iraq also imported large quantities of the bacteria, as well as other biological agents such as botulism and aflatoxin.
Iraq is known to have used anthrax as a weapon during the Iran-Iraq war in the 1980s. The Iraqi military is believed to have weaponized anthrax by loading it into bombs, shells, and missiles for use against Iranian forces. Iraq is also thought to have used anthrax against Kurdish civilians in northern Iraq.
Moreover, Iraq had an ongoing program to develop and produce anthrax as a weapon after the war. UN weapons inspectors found evidence that Iraq had produced hundreds of liters of anthrax and had the capability to weaponize it.
In conclusion, there is no doubt that Saddam Hussein used anthrax as a weapon. Hussein had a large-scale program to develop and produce anthrax and other biological weapons, and he used the agent during the Iran-Iraq war. He also had an ongoing program to develop anthrax for use as a weapon after the war.