Some specialists mention that there is a type of alcohol that does not intoxicate but is fatal to whoever drinks it. Is it permissible to use this alcohol?

The questioner : Regarding alcohol, my Shaykh, some specialists mention that there is a type of alcohol that does not intoxicate; it is fatal, meaning if one drinks it, it kills them but does not intoxicate. I do not know if it enters into some of the things we use, meaning...

The Shaykh : The answer... is from my previous statement, but as long as it does not intoxicate, it does not intoxicate, but its status is like that of a narcotic. A narcotic is not an intoxicant, but it is not permissible to use a narcotic for the purpose of numbing except in a specific amount and out of necessity. This type of alcohol has a strange name among them; it kills but does not intoxicate. If it does not actually kill, because a small amount of it is placed in some medicines and it does not harm, then there is no objection to using it... Yes.