从某些方面来看，安慰剂是理想的药物：他们通常没有副作用，而且基本上是免费的。
In certain ways, placebos are ideal drugs: they typically have no side effects and are essentially free.
此项研究，中途退出的比率很高，差不多有一半的参与者(59人)在研究完成之前离开，通常是因为副作用，或因为治疗对他们没有帮助。
The study had a high dropout rate, with almost half of the participants (59 people) leaving the study before it finished, often because of side effects or because the treatment wasn't helping them.
虽然如此，几个专家说他们会继续支持怀孕者摄入DHA，既然它是安全的而且显然没有副作用。
Nonetheless, several experts said they would continue to support taking DHA in pregnancy, especially since it is safe and apparently has few downsides.
但他们没有考虑到药物的副作用，尤其是会上瘾的作用。
What they don't consider is the side effects that come from these types of pills, not the least of which is addiction.
但是他们发现，在给小鼠的后腿注射了CD47抑制剂后，脱发，溃疡和脱皮这些暴露在放射线下的副作用相比于没有注射CD47抑制剂的小鼠后腿减轻了很多。
However when they injected the hind leg of mice with the CD47 suppressor, it showed much less hair loss, ulceration and peeling when targeted by radiation than an untreated leg.
我能想起好多从事大量活动的人，但是我并没有将他们划归为上瘾的人，因为他们从事的那种行为并没有给他们带来任何的副作用。
I can think of lots of people who engage in excessive activities but I wouldn't class them as addicts as they don't appear to experience any detrimental effects from engaging in the behaviour.
没有必要担心这些类固醇，因为他们是低潜能和小的副作用。
There is no need to worry about these steroids because they come with low potency and little side effects.
现时没有证据显示这些药物提供的效益重于他们的副作用。
There is no evidence at the moment that the benefits of these drugs outweigh their side effects.
自然的方式处理这个问题的首选，因为他们没有常规药物的副作用。
Natural ways of dealing with this problem are preferred since they do not have the side effects of conventional medicines.
应当将这些药物给予已尝试过许多缓解期长的传统治疗的患者，他们没有癌症症状，或大的副作用。
It's giving patients who have already tried many conventional treatments long periods of remission, free from the symptoms of cancer or major side-effects.
应当将这些药物给予已尝试过许多缓解期长的传统治疗的患者，他们没有癌症症状，或大的副作用。
It's giving patients who have already tried many conventional treatments long periods of remission, free from the symptoms of cancer or major side-effects.
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