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Healthcare professionals

HG Facts

Hyperemesis Gravidarum rarely ends at 12 weeks of pregnancy. It typically improves in the middle of pregnancy, but symptoms often last until birth. 

Irish Guidelines

Ireland has National Treatment Guidelines. You can download them here.

Resources for professionals

2025 updates

Information on IV rehydration and medications at home for Irish Life Health customers through their Health in the Home service. The service is not new, but HG is now covered with consultant prescription. 

The 2024 MBRRACE report (covering 2020-2022 in the UK & Ireland) highlights the importance of prompt recognition and treatment of thrombosis and thromboembolism, as the leading cause of death in pregnancy and postpartum. Women with HG are at higher risk of VTE due to dehydration and immobilisation, and their risk profile should be dynamically assessed throughout pregnancy. Please see the full report for case studies including HG-related deaths, and recommendations. The 2025 report (2021-2023) also highlights VTE as the leading cause of death,and has three case studies of women with HG. 

Previous updates & resources

Click here for treatment guidelines from the HSE (2018) and RCOG (2024). 

Ondansetron: click here to read the Irish Medicines in Pregnancy Service (IMPS) statement on ondansetron in pregnancy (2019)

Click here for a printable information leaflet about tips for eating and drinking

The National Medicines Information Centre factsheet on medications and breastfeeding

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