Walgreens offers the Culturelle Probiotic for Kids 30-Count Packets for $10. Opt for free in-store pickup to dodge the $5.49 shipping charge. (Click "Find at your local Walgreens" to place your order through your local store.) That's $7 under the lowest total shipped price we could find. Sales tax is added where applicable. This dietary supplement can be mixed into cool food or drink and is purported to help support children's natural defense systems.
Of note, it's also available in chewable tablet form for the same price. That's $14 under the best shipped price we could find. It's suitable for kids who weigh 50 to 100 lbs.