WARNING!!! Although the description states "for emergency cases of radioactive radiation," it is not suitable for extreme cases of radiation such as a nuclear explosion, as it is 200 micrograms while the required dose is 130 milligrams, which is 650 times higher.
Because I researched it, I did not find such high-dose pills being sold in Greece, but I found them abroad with 65mg, which means you need to take two pills for protection.
Hopefully, they will never be needed.