The consciousness-pill would do one of two things:

Either, the consciousness-pill would make all the activities of the brain conscious.

In which case, it wouldn't help differentiate the nonconscious from the unconscious.

Or, it would only make unconscious processes conscious,

In which case, the thought experiment is still unhelpful, because no basis is given fordescribing how the pill differentiates nonmental neurophysiological processes from mental processes.

In either case, the consciousness-pill does not act as a means of differentiating the mental from the non mental.

Because the essential benefit of the connection principle is that it provides a criterion for distinguishing the mental from the nonmental, the pill differs from an extreme version of the connection principle and is, as a thought experiment, unhelpful.

John Searle (1994).