Powder inhalant, inhaler and method for producing powder inhalant

Provided is a powder inhalant that contains composite particles which are obtained by applying vibrations having frequencies in the range of 7.5-480 Hz to a mixture of first particles having an average particle diameter d 50 of 10-200 μm and second particles having an average particle diameter d 50 of 1-5 μm, and in which a plurality of the second particles are supported on the surface of the first particles.