Pharmaceutical compositions containing a 3-hydroxypyrid-2-one or 3-hydroxypyrid-4-one in which the hydrogen atom attached to the nitrogen atom is replaced by an aliphatic acyl group, by an aliphatic hydrocarbon group, or by an aliphatic hydrocarbon group substituted by one or more substituents selected from aliphatic acyl, aliphatic amide, aliphatic ester, halogen and hydroxy groups and, optionally, in which one or more of the hydrogen atoms attached to ring carbon atoms are replaced by one of said substituents, by an aliphatic hydrocarbon group, or by an aliphatic hydrocarbon group substituted by an alkoxy, aliphatic ester, halogen or hydroxy group, but excluding compounds in which said replacement of hydrogen atoms in the compound is effected only by substituents selected from aliphatic hydrocarbon groups and aliphatic hydrocarbon groups substituted by an alkoxy group or groups, or a physiologically acceptable salt thereof, are of value for removing toxic amounts of metals, particularly iron, from the body.
含有 3-
羟基吡啶-2-
酮或 3-
羟基吡啶-4-
酮的药物组合物,其中与
氮原子相连的
氢原子被脂族酰基、脂族烃基或被选自脂族酰基、脂族
酰胺、脂族
酯、卤素和羟基的一个或多个取代基取代,并且可选地,其中与环
碳原子相连的一个或多个
氢原子被上述取代基之一取代、脂族烃基,或被烷
氧基、脂族
酯、卤素或羟基取代的脂族烃基,但不包括仅由选自脂族烃基和被一个或多个烷
氧基取代的脂族烃基的取代基实现化合物中
氢原子的取代的化合物,或其生理上可接受的盐。