Clarithromycin
"It's 2:45 am, I only Wish I could experience these odd dreams everyone's talking about... it's day one of this garbage antibiotic. I can not sleep, I feel like I did 50 lines of coke, I'm sweating, and my mother tastes like a change dispenser.  Couldn't pay me to take a second dose, let alone 7 more days of this.  No way.  Calling Dr in the am for different antibiotic.  This one is not worth it.  I'm feeling very jittery and agitated. And the taste in my mouth is disgusting."