Dillings Formula:
Take the age in years of the child and divide by 20 to get the portion of the adult dose to administer.
Example: a 6 year old child = 6 divided by 20 = 3/10ths
Young's Formula:
Take the age in years of the child and divide by the age in years of the child + 12 and this will equal the portion of the adult dose to administer.
Example: a 6 year old child divided by 6 + 12 (18) = 1/3 the adult dose
Cowling's Rule:
Divide the age at the next birthday by 24.
Example: a 5-year-old would be 6 at the next birthday; 6 divided by 24 equals 6/24 or 1/4. Dose would be 1/4 the adult dosage.
Clark's Rule:
Divide the weight in *pounds of the child by 150 to give the approximate fraction of the adult dosage.
(*pounds: using a dosage based on the weight is a more sensible choice. Children vary considerably in size despite their ages. A small 6 year old would require less than a large 6 year old).
When in doubt, always ask a person knowledgeable in the area of herbal dosages.
Thanks!
Charles
