Pulverised mannitol and process for its preparation.

The invention relates to a powder and d-mannitol, characterised is a powder and d-mannitol with μ 50-100 microns, preferably 80-180 μ the average diameter; the packed density of A experimenting is obtained 0.65-0.85g/ml, preferably 0.7-0.8g/ml, and having at least 60, preferably 60-90 moving from. The invention further relates to the preparation of the powder and d-mannitol is for the manufacture of field use of the preparation is used as excipient in the use, wherein the filling hard capsule use of the powder.