Hello - It works fine and it's formulated on blood volume levels - each 30 pounds of body weight = 1 capsule. If a child is over the age of 12 and over 150 pounds, they can take the adult formula. I know this sounds strange considering the fact that 100 pound adults can take HUMAWORM For Adults too - but again, it is based on blood volume levels and age. Here is what exactly is in each capsule: (Note there is NO WORMWOOD in the children's formula - it is also a narcotic and is VERY DANGEROUS for children.)

HUMAWORM For CHILDREN

Black Walnut 15mg

Cloves 2.5mg

Thyme 2.5mg

Garlic 50mg

Cayenne 2.5mg

Milk Thistle 10mg

Marshmallow 10mg

Pau D' Arco 10mg

Barberry 10mg

Senna 2.5mg

Cramp Bark 10mg

Peppermint 20mg

Psyllium 10mg

TOTAL 155 mg per capsule.

One capsule per day per 30 pounds of body weight taken at least 30 minutes before meals. Round your child's weight up or down to the nearest 10 pounds and dose accordingly. EXAMPLE: A 70 pound child will round down to 60 which is 2 pills per day while a 80 pound child will round up to 90 pounds which is 3 pills per day. If your child takes more than one capsule per day, then give one dose in the morning and the other dose 12 hours later. If your child is over 12 years old and 150 pounds or more - he or she may safely take HUMAWORM For ADULTS. HUMAWORM For CHILDREN is NOT RECOMMENDED for children under the age of 2 or for children under 30 pounds!