Answer
The intravenous product is licensed for hypertensive emergencies, particularly those associated with pre-eclampsia or eclampsia, and is given in a monitored hospital setting.
Sources for this answer
- Hydralazine 20mg Powder for Concentrate for Solution for Injection/Infusion — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.