Tiotropium salts, their solvates and hydrates are new. Tiotropium salts of formula (I), their solvates, hydrates are new. [Image] X ->; : anion. Independent claims are included for the following: (1) a pharmaceutical composition (C1) comprising (I) and carrier or excipient; and (2) preparation of (I). ACTIVITY : Respiratory-Gen.; Antiasthmatic. MECHANISM OF ACTION : None given.