The drug may be legalized for medical purposes.

出于医疗目的，这种药物可以合法化。

That's why tamarind fruits are often used for medical purposes.

所以，在医药方面酸角也被人们广为运用。

Drugs like opium have been outlawed except for medical purposes.

像鸦片一类的药物除用于医疗外均为非法。