| 摘要 |
A pharmaceutical composition for prophylactic and preventive of ketosis of livestocks which contains a dithia derivative represented by the general formula (I), <IMAGE> (I) wherein R and R' may be the same or different and are each individually a lower alkyl group, n is an integer of 0, 1 or 2; and A is a group of the formula, -CH2-, <IMAGE> (wherein M is a hydrogen atom or a salt-forming residue), -CH=CH-, -CH2-CH2-, <IMAGE> |
