The long-term usage may have certain untoward effect.

连续使用可产生一定的不良反应。

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Objective Analyze the untoward effect caused by intravenous transfusion.

目的分析静脉输液引起的不良反应及相应对策。

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Objective to investigate countermeasure to traditional Chinese medicine (TCM) untoward effect.

目的探讨中药不良反应的对策。

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But the drug "hits a lot of targets, and one concern is to make sure you are not inducing an untoward effect in people who are not as severe as kids with progeria, " Dr. Collins said.

WSJ: Progeria Drug Study Helps in Search for Clues on Aging

The fact that such exceptions must be authorized on a case-by-case basis, however, offers some basis for ensuring that they are made deliberately and on the basis of merit -- and do not have the untoward effect of undermining the sanctions in place.

CENTERFORSECURITYPOLICY: Center For Security Policy

It would be great to have a new drug that had a wonderful effect on lowering cardiovascular risk with incurring any untoward risks.

FORBES: Merck Does The Right Thing