| Subject | English | Irish |
| econ., social.sc. | side effect | fo-éifeachtaí |
| environ. | side effect Any secondary effect, especially an undesirable one | fo-iarmhairt |
| med., pharma. | side effect | fo-iarsma |
| environ. | side effects of pharmaceutical drugs | fo-iarmhairtí drugaí cógaisíochta |