Q:

# What mathematics are involved in drug dosage calculations?

A:

Before calculations are performed, all units involved should be converted into one system, notes NursesAreGreat.com. There is a basic formula, which is frequently used to calculate drug dosages. Other methods used include ratio and proportion, fractional equation, intravenous flow rate calculation and continuous infusions.

## Keep Learning

The basic formula states that D/H * V = amount to give. In this formula, D refers to the ordered or desired dose, H refers to the dose on container label or on hand, and V refers to amount and form of drug, such as tablet, capsule or liquid, explains NursesAreGreat.com. The ratio and proportion method, H : V :: D : x, is the oldest method used for calculating doses, where H and V are known values, and D and x represent the desired dose and amount to give. D and V are multiplied to equal the product of H and x. The fractional equation states that H/V = D/x. For both of these methods, x must be solved for.

Sources:

## Related Questions

• A: Two milligrams of zeaxanthin per day is an appropriate dose for support of eye health, as claimed by the American Optometric Association. While there is no... Full Answer >
Filed Under:
• A: Recommended daily doses of astaxanthin range from 4 to 12 milligrams, with the lower dose being effective for reducing inflammation and the higher therapeu... Full Answer >
Filed Under:
• A: The proper dosage for a daily intake of ibuprofen depends on the person and his ailment. Drugs.com says that the normal dose for an adult in pain is 200 to... Full Answer >
Filed Under:
• A: The research dosage of turmeric, or curcumin, for upset stomach is 500 milligrams four times daily, according to WebMD. The dosage in studies for osteoarth... Full Answer >
Filed Under:
PEOPLE SEARCH FOR