Rhodadendrum...poisonous?

[Salvacion]

I have been reading that these
plants are poisonous. Does anyone have any additional information?

 

[jizz676]

https://www.spaink.net/suicide/suicide_poison_natural.html#rhododendron

 

[Salvacion]

https://www.spaink.net/suicide/suicide_poison_natural.html#rhododendron

It seems quite potent......painful perhaps but potent. I wonder if there are unrelated, undiagnosed suicide from this?