The claimants allege that manufacturers failed to warn doctors that their drugs should be used only in limited circumstances.

索赔人声称生产商没有警告医生他们生产的药品只能在特定的条件下使用。

《柯林斯英汉双解大词典》

Instead of each province having its own list of approved drugs, bureaucracy, procedures and limited bargaining power, all would pool resources, work with Ottawa, and create a national institution.

与其让各个省开列审批药物、单位、厂商名录以及划定药价，还不如整合资源，与渥太华合作来创立一个全国性的医药代理机构。

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For cases of human infection with H5N1, the drugs may improve prospects of survival, if administered early, but clinical data are limited.

对感染H5N1的人间病例，这些药物如果及早使用，可能改善存活前景，但临床数据很有限。

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Doctor Guay says the problem in sub-Saharan Africa is the limited availability of anti-retroviral drugs.

VOA: special.2009.07.29

These include, but are not limited to, drugs commonly used to treat depression and migraine.

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Gen Aristides said recently he believed smuggling had surged since the US limited anti-drugs co-operation with Honduras in protest at the ousting of President Zelaya in June.

BBC: Honduras anti-drug chief shot dead by gunmen

In summary, drugs without a significant return on investment, will often be limited in their production in favor of drugs which may produce higher profit margins.

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