http://www.medications.com/effect/view/36968 I took z-pak this week, and I've had some stomach cramps. The first night I took it it was the worst, but they've gradually gotten better. But does anyone know if it can cause vivid dreaming? Every night I've taken it I've had some extreme dreams (one inc Mon, 02 Mar 2009 11:47:31 -0500 http://www.medications.com/effect/view/36968?item=17602 yea, I've had the cramping too. i've been on it since last Tuesday. And the dreams i thought were from just being sick, but i never thought it would be caused by the meds. Hmm. Weird. I've had some crazy ones the past few nights to. (well, whenever i'm a http://www.medications.com/effect/view/36968?item=17602