APTX problem

[Adel34]

I noticed some curious things when it comes to the APTX effect on Shinichi. In the "Kudo Shinichi is the murderer" case, at first it takes several hours for Conan to transform into Shinichi, but later when Haibara gives him the drug again and claims "it's the same drug that you took before" it takes him only a couple of seconds to turn back. It also took Conan several hours to change in the Diplomat Murder Case, but in the London case when he was hiding in the phone booth, again, it took him only a couple of seconds.

Does anyone else see a problem here? Or maybe the drugs are of different types and Haibara makes some that work slower and some that work faster?

[Shiromi]

It seems that the more he takes it, the closer together he takes it, the exponentially faster the transformation and the exponentially shorter the time spent transformed. It's not very consistent, though.

[k11chi]

It's just his immunity system building up antibodies and all that...

Also it's not the APTX it's the APTX's antidote... Haibara can make it stronger now than what it used to be surely.

The amount of medicine taken is based on amountwhatever/kg. . .