The dietary supplement creatine can have the same effect. If your serum creatinine level is higher than normal, your doctor may want to confirm the results with another blood or urine test. If kidney damage is a concern, it's important to control any conditions that may be contributing to the damage.
Dollars were included in proof sets through 1981, when the last of the Susan B. Anthony dollars were made during their original run. Regular proof sets returned to a 5-coin format through 1998. In 1999, U.S. proof sets were substantially expanded in size to include the newly released 50 States Quarters.
On July 2, 1979, the U. S. Mint officially released the Susan B. Anthony coin in Rochester, NY, the home of Susan B. Anthony during the most politically active years of her life. In 1979, 757,813,744 coins were produced. Additional coins were dated 1980, 1981 (numanistic items only), and 1999.