The invention relates to a unitary composition which comprises a derivative of 2-hydroxy-5-phenylazobenzoic acid which is, more particularly, sodium balsalazide dihyrate, which composition has a specific gravity of at least 0.9 mg / mm³ and suitable for the treatment of gastrointestinal diseases.
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机译：本发明涉及一种单一组合物，其包含2-羟基-5-苯基偶氮苯甲酸的衍生物，更具体地讲，是巴拉沙肼二氢酸钠，该组合物的比重至少为0.9mg / mm 3，并且适用于胃肠道治疗。疾病。
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