Methuselin

Methuselin (メトセリン) is a drug that is briefly mentioned by Touma, as a drug used in the Power Curriculum Program.

Etymology
The katakana used for Methuselin is similar to that used for (メトシェラ), the oldest known human character in the, the son of  and the grandfather of.

The name is apparently a of "Methusel-" and the suffix "-in".

Principles
Part of the Power Curriculum Program, it is apparently in pill form, and due to its use of the "in" suffix, apparently denotes that is probably a pharmaceutical product, or protein. It is most likely a mind altering substance that aids the user in achieving Personal Reality, though this is just speculation.