Those pills do more harm than good Dollie. What has helped me overcome heartburn and acid reflux is having a half glass of water in the mornings with 2 tablespoons of organic lemon juice and 1/3 teaspoon of baking soda. In the evening, I eat a small tart apple like Granny Smith, Braeburn or Pink Lady. Since I started this practice, I rarely get heartburn or reflux, and before that it was a problem.
Of course is you have health issues and are on a sodium restricted diet, then the baking soda can't be used. Baking soda is also a quick remedy now and then if you do get heartburn, 1/2 teaspoon in a small amount of water. This will cause you to belch, thus relieving the gas that may be causing the feeling of heartburn.
It's good to have some Aloe Vera in the fridge handy, it's soothing for the esophagus and throat if you do have a bout of reflux, and it can also be used as a preventative, a small glass in the evening. The brand I recommend is Lily of the Desert.
Not eating anything (aside from the small apple) in the evenings after dinner and before bed, also helps too. Also, elevating your head at night with a wedge or something under the head of the bedpost. If your daughter will get on a routine like this, she'll notice a big difference in a week or two and it just gets better. Good luck.