The present invention relates to a solid form, particularly to a 3D-printed immediate release solid dosage form (e.g. based on a pharmaceutical, nutraceutical, or food supplement composition). To overcome some of the solubility and disintegration problems inherited by 3D-printed solid dosage forms, the solid form comprises one or more channels, generally in the form of tubular passages or grooves, through the body of the solid form or the surface thereof.