I get terrible morning sickness to where I end up in hospital on an iv. I took zofran with my first daughter and all was ok, it worked wonders. Now with #2 dr prescribed me phenergan and I'm feeling really anxious about taking it not sure why. I've heard how it makes you really sleepy and knocks you out. I really need something though because I ended up in er today dehydrated and with a uti. anyone take this and have success?