A.K.
I highly reccomend the gripe water! I had never even heard of it until my neighbor told me about it. My first baby was fussy (we later found out she was milk sensitve meaning I couldn't drink milk the whole time i was nursing her) so while I was pregnant with my second, I found the gripe water and had it on hand after the delivery, just incase. After he was about 2 weeks old, we went through 2 nights of no sleep with a really crabby baby (not colic, just really fussy). I decided to use the gripe water and he slept for 6 hours! At first, I was scared because I thought maybe I'd drugged him. Not at all the case. It just helped his tummy so much that he finally got some much needed rest. From then on, I was hooked! There are a lot of different brands of gripe water. The one I used was called Colic-ease. Sounds like the colic calm might be the same thing? In European countries, they use it all the time. Here in the States, all anyone knows about is gas drops. The gripe water works so much better and it's all natural.
It can be a little difficult to find. I bought mine at a "Fresh and Natural" food store. I think the Whole Foods stores carry it as well. You can find it on the web and they will link you to stores that carry it. It is definatly worth giving it a try. It's worked for everyone I know.
Good Luck!