1 A physical change, such as a state change or dissolving, does not create a new substance, but a chemical change does. 2  In a chemical reaction, the atoms and molecules that interact with each other are called reactants. 3  In a chemical reaction, the atoms and molecules produced by the reaction are called products. In a chemical reaction, the atoms and molecules produced by the reaction are called products. 2  In a chemical reaction, only the atoms present in the reactants can end up in the products. 3  No new atoms are created, and no atoms are destroyed.
Humira (adalimumab) is a biologic drug that works by blocking a protein known as TNF-alpha. Normally, TNF-alpha helps fight infection, but in excess amounts, it can cause painful inflammation and severe joint damage -- common symptoms of rheumatoid arthritis and other forms of inflammatory arthritis.
At this point, there are no generic insulin medications in the United States. Humulin N is considered a biologic medication that is regulated by different rules and laws than most other medications.At this point, generic biologics, including generic Humulin N, are not allowed to be manufactured in the United States.Currently, legislation is underway that may change the laws concerning generic biologics (including insulin), but it is not clear when (or even if) this may happen.o -- NPH insulin is the active ingredient in Humulin N (as well as other insulins) but is not a generic version of it.