Oh, Brooke, I started to cry when I read your last post! You poor woman! I feel so bad for my first post!
If they gave you Diclectin, I betcha you're in Canada. A combo of Diclectin and Zofran helps many, many women. Zofran stops or slows vomiting, while Diclectin helps keep the nausea to a dull roar.
You can safely take a lot of Diclectin -- I take 40 mg a day, and that's a low dose compared to many others here.
Zofran comes in several forms -- pills, IV and ODT (it dissolves under the tongue or in the vagina). As Pamela said, many women find pill formulations useless, especially if dehydrated. IV often works better (and it's free if you're in Canada and get it in a hospital!) Many women here are on dosages as high as 32 mg/day.
But Zofran is expensive. Hope you have drug insurance. (Check out the Zofran sticky on the first tri board!)
As for Reglan.... I was given that too. Found it useless and just made me feel like I needed to crawl the walls.
Please keep in mind that you may need even more fluids if you aren't feeling much better. You may need home hydration therapy. You want to stop the dehydration/vomiting cycle in its tracks, right now, or things will get even worse (if you can believe it!)
Anyway, hope the high-risk OB is good. You may want to bring a llist of possible drugs to him or her -- sometimes you get what you want when you ask.
Hugs and prayers -- remember, if you start to feel hopeless, dizzy, woozy, etc, those are dehydration signs. Get thee to a hospital -- don't be a trooper.
Fingers crossed for you!