I was wondering what people's experiences with this drug were. My recent IV course with Timentin doesn't seem to be too effective, but my doctor said that Zosyn, Ceftazadime, and imipenem can all treat my bacteria (Pseudomonas Alcaligenes) but I'm allergic to Ceftazadime. She said people who use Zosyn often get fever and rash and imipenem you get nausea. Obviously not everyone gets the side effects, but I was wondering what your experiences were.