Calcium-disodium EDTA and DMSA are only approved for the removal of lead by the Food and Drug Administration while DMPS and TTFD are not approved by the FDA. These drugs bind to heavy metals in the body and prevent them from binding to other agents.
The kilogram is the SI unit of mass and it the almost universally used standard mass unit. The associated SI unit of force and weight is the Newton, with 1 kilogram weighing 9.8 Newtons under standard conditions on the Earth's surface.
Weight is the force that mass has because of the gravity. So, if an object has a mass of one pound, then it has the same mass on the moon, but weighs less than earth. In metric system, unit of mass is kilogram. Other common metric mass units are grams, milligrams and tonnes.In imperial and u.s. customary system, common weight units are pound and ounce.o, if an object has a mass of one pound, then it has the same mass on the moon, but weighs less than earth. In metric system, unit of mass is kilogram. Other common metric mass units are grams, milligrams and tonnes. In imperial and u.s.