The Blue Flute (Japanese: あおいビードロ Blue Vidro) is a type of medicine introduced in Generation III. It is one of the flutes.
In the Generation V games, the Blue Flute can be sold to the billionaire maniac in Undella Town for 7000.
When used in the field or in battle, wakes a sleeping Pokémon.
When used in battle, wakes a sleeping Pokémon. (The Blue Flute can no longer be used outside of battle.)
The Blue Flute serves no practical purpose other than to be sold.
A Blue Flute appeared in JN007, where it was included in the set of flutes rewarded to Ash for winning the Battle Frontier Flute Cup.