粵典 (words.hk)香港詞
主要功用之外嘅效果；通常指藥物或者治療嘅負面影響（量詞：個／種／樣） (side effect, usually in a negative sense)
名詞用例
呢隻藥副作用好勁，會食到我頭暈手震。
ni1 zek3 joek6 fu3 zok3 jung6 hou2 ging6, wui5 sik6 dou3 ngo5 tau4 wan4 sau2 zan3.
The side effects of this pill are too strong. It makes me dizzy and my hands tremble.