i think the pills Gus took were Charcoal pills, which help you regurgitate any kind of toxin you get in your stomach. they give that to you if you ingest something poisonous.
this show keeps getting better and better... and FUCK i hope Mike stays in tact. he's my favorite character on the show right now.
also I think this thing with Ted is gonna somehow tie in with walt/gus... he's gonna find out somehow and try to blackmail skyler. hopefully they'll kill him.