This medicine should be taken per os three times a day aftermeals.

此药应口服,每天3次,饭后服用.

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Methods: Toxicological tests per os through skin and mucosa were performed.

方法: 经口、粘膜、皮肤试验.

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Results: Toxicological per os showed no toxicity.

结果: 小鼠经口毒性试验未显示毒性.

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He was treated with metronidazole for three weeks per os and tetracycline for four months.

其病程分期属于前淋巴瘤期的晚期.

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