Echinacea can also cause potentially serious side effects .

紫锥菊也可能会引起严重的副作用。

Injected echinacea in particular has caused severe reactions .

注射紫锥菊制剂尤其可能导致严重反应后果。

Another group received echinacea and were told they were receiving the herb .

另一组服用了紫锥菊，并被告知他们服用的是草药。

The placebo effect was most pronounced among people who believed in echinacea 's healing properties .

在相信紫锥菊的治疗功效的病人中，这样的安慰剂效应最为明显。

People with ragweed allergies are more likely to have a reaction to echinacea , and there have been cases of anaphylactic shock .

对豚草过敏的人更可能由紫锥菊引发生理反应，甚至有引起过敏性休克的案例。