I take mine morning and evening. The only thing to make sure of is that you take it an hour before lying down - if it gets stuck in your throat it will burn horribly. You can ask your doctor to be sure though if you are concerned about dosing schedule.

Yeah, it's fine to take it in the evening, but don't take it too close to bedtime. I've done this and woken up a few hours later with incredibly bad heartburn, it's not nice! You want to make sure it's had time to get down your throat and into your stomach.