In BlueCross BlueShield of South Carolina's open formulary benefit design, once a drug is FDA approved, we will cover it. Dual eligibles have gotten used to the open formulary under Medicaid, but some of Medicare's formularies might be closed, and we don't know what those will be.
Shingle(noun) a piece of wood sawed or rived thin and small, with one end thinner than the other, -- used in covering buildings, especially roofs, the thick ends of one row overlapping the thin ends of the row below.
composition shingles. Definition. Shingles made from felt impregnated and covered with asphalt, and then coated on the exposed side with colored granules. Picture of composition shingles.