We're working on compounds to close that door so that drugs can't get out of the cell.

Traditionally, we've given drugs based on patient size – how big they are, how tall they are, how much they weigh. But we've ignored how people metabolize those drugs – once you take them, how you change them.

It seems like the drug industries are saying, 'The older drugs are available and they're cheap so we've done our thing.

The most commonly used clinical application is drug reference, so far. But it has gone beyond just looking up drugs and dosages and running interaction checks.

C'mon, let's go in my room and abuse drugs and stuff!

My message wasn't, 'Don't use drugs, they're bad for you,' it was don't go out to parties where you are going to get drunk and lose your inhibitions and try drugs. Because once you try them, you will like them. Don't put yourself in that position.