Flintstones Chewable Vitamins are a supplemental multivitamin for children, shaped like the characters of the animated sitcom The Flintstones. They were introduced in 1968 by Miles Laboratories and taste sweet like candy. Miles Laboratories was acquired by Bayer in 1979. The vitamins are a very successful dietary supplement. The jingle tagline, "We are Flintstones Kids, Ten Million Strong and Growing..." (music by Martin O'Donnell, lyric by Jim Morris), became famous through heavy advertising. The vitamins are widely available. They feature vitamins in the shapes of the Flintstones characters: Fred Flintstone, Wilma Flintstone, Pebbles Flintstone, Barney Rubble, Betty Rubble, Bamm-Bamm Rubble, Dino, and The Great Gazoo. For over twenty years, Betty was not included as one of the vitamins. However, after a grassroots campaign and the results of a Bayer telephone poll came in favor of including Betty, the character was added to the lineup in 1995, replacing the Flintstone car.