My OB prescribed it to me at my last appointment. I couldn't keep anything down! She had a 100 pill sample so unfortunately, I don't know how much it cost. The first time I took it, I woke up feeling like a ton of bricks hit me. I was very groggy all day and still had nausea but no vomiting. The next day was a bit better and by the third day, when I was able to amp the dosage, I wasn't groggy or nauseous at all. I will say don't think it will cure you from vomiting because I do get sick still some mornings. But it's not the all day sick where you can't keep anything at all down. With it, I'm finally able to function again, so I say it's way worth it.