Estimates an infant dose from age in months and the adult dose.
Fried’s rule estimates infant dose from age in months and adult dose. The constant 150 is the denominator used by the standard infant-dose rule.
Use this as an arithmetic estimate for infants and children up to 24 months when month-based calculation is requested.
Medication calculations are safety-critical arithmetic checks. This calculator does not prescribe or recommend medication; always verify with the medication order, current references, and local policy.