 Also, in "The Power of Three", after a massive electric current is passed through the Eleventh Doctor, he is left with only one heart in working condition and is unable to carry on for a long period of time.In "The Unicorn and the Wasp", the Tenth Doctor is able to overcome the effects of cyanide by "stimulating the inhibited enzymes into reversal", a process he referred to as going through "detox".<ref name="The Unicorn and the Wasp"></ref>

In the episode "Cold Blood",<ref></ref> the Eleventh Doctor experiences excruciating pain when the Silurian attempts to decontaminate him of surface bacteria.The Doctor states this would kill him, most likely due to the scanners being programmed to "detox" humans and therefore being unaware of what elements the Doctor requires.