Flintstones Chewable Vitamins are supplemental multivitamins for children based on the animated sitcom The Flintstones. They were introduced in 1968 by Miles Laboratories and taste faintly like candy. Miles Laboratories was acquired by Bayer in 1979. The vitamins are one of the most successful drug products. Some advertisements have been under heavy rotation without being related to The Flintstones. Their jingle/tagline, "We are Flintstones Kids, Ten Million Strong and Growing . . ." (music by Martin O'Donnell, lyric by Jim Morris, AKA Tagline Jim), has reached fame through the heavy circulation of advertisements. The vitamins can be purchased in pharmacies, grocery stores, and on the black and grey markets. They feature vitamins in the shapes of the following 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.