Editions of George's Marvelous Medicine

English language

Published June 9, 2007 by Penguin Publishing Group.

Welsh language

Published Nov. 14, 2020 by Rily Publications Limited.

Welsh language

Published Nov. 14, 2014 by Rily Publications Limited.

unknown binding

Published by Gallimard-Jeunesse.

Welsh language

Published June 9, 2009 by Rily Publications Limited.

Welsh language

Published June 9, 2022 by Rily Publications Limited.