Lucy has really bad AR, gas and grunts/screams while feeding her sometimes. We tried colic calm after researching alternative methods. Our pediatrician approved and we've been using it any time she has a major grunting/screaming during or after feeding. It seems to work instantly, she takes it right down--not bothered by the taste--and usually calms right away. I am not saying it will work for everyone but I just wanted to share that it is helping us.
Re: colic calm