Can Prevacid have an impact on my 10-month-old daughter's sleep, since she has been taking it for reflux since she was 4 months old?

Prevacid is unlikely to have an impact on your daughter's sleep, as it is considered to have a neutral effect in terms of sleep. If you believe your daughter may no longer need the medication, it is a good idea to discuss this with her doctor. Gradually weaning off the medication is typically well-tolerated, especially when symptoms have improved. It is recommended to inform the prescriber before making any changes to medication.