Key to symbols
The medicine should be initiated by, or on the advice of a specialist, but is suitable for continuation by a GP
The medicine should only be used and prescribed by a specialist
Indicates the preferred choice within a class or group of medicines
3.4. Antihistamines, hyposensitisation, and allergic emergencies
3.4.1. Antihistamines
Total Formulary
HYDROXYZINE
Prescribing Notes:
The MHRA published advice relating to hydroxyzine in April 2015 advising that the maximum adult daily dose is now 100mg and advising that, due to the risk of QT interval prolongation and Torsade de Pointes, it should not be prescribed to people with prolonged QT interval or risk factors for QT interval prolongation.
For further information, seen the MHRA guidance.