The definition of silk is something smooth like or made of the very soft and fine threads spun by silkworms. An example of silk is smooth and creamy chocolate truffles; silk truffles.
Biologic response modifiers, also known as biologics, are medications that were designed to prevent or reduce the inflammation that damages joints. Biologics target molecules on cells of the immune system, joint, and the products that are secreted in the joint, all of which can cause inflammation and joint destruction.
He or she might also decide not to prescribe a biologic if: 1  You have had tuberculosis in the past that has not been treated. 2  You have had other infections that were not treated. 3  You have cancer. 4  You have or had heart failure. 5  You have certain neurologic disorders.