Kids can take Imodium.
If the kid is between the ages of 2 years old to 5 years old then they should only take the liquid form of Imodium.
If the kid is 6 years old and above then they can take either the liquid form of Imodium or the Pill Form of Imodium.
Also if you cannot get your kid to take the pill form of Imodium you can crush the Imodium pill up and mix it over some food.
Then the kid can take the Imodium and may not even realize they are taking it.
Sometimes that is what you have to do to get kids to take some medicine.