Reply #19: There are some medications which can cause similar effects

[Maiden England]

Atypical Antipsychotics: some of the side effects include dry mouth, confusion, speech disorder, thirst.
The older antipsychotics can cause parkinsonian like symptoms.
High dose steroids can also cause a myriad of effects, in particular, there's been mention of bruising on the Prez's face, and other skin irregularities, and that's one of the most common s/e of steroids, thin skin and easy bruising.
Regular anxiolytics, such as Valium can cause salivation changes and confusion and also amnesia.
Of course pretty much any drug can give you any side effect.