Is it permissible to produce an antiserum for a scorpion sting from the scorpion's own venom, and is it permissible to administer antiserums extracted from animal venoms, secretions, or from the animal itself?

First: It is believed that Muslims knew about vaccination before Edward Jenner, as it reached Europe through the wife of the British ambassador in Istanbul in 1724.

Second: Vaccination before the onset of illness is permissible, and this is the view of the majority of scholars.

Third: Drinking poison with the intention of suicide is forbidden. However, using it for medicinal purposes is permissible if its benefit is proven by the description of a skilled physician, such as using it for immunization against poisons or for protection for those who live among snakes and scorpions, provided that the anticipated harm from it is less than the desired benefit.