3.4 Antihistamines, hyposensitisation, and allergic emergencies

3.4.1 Antihistamines

 

Alimemazine (trimeprazine) syrup 7.5mg/5ml, 30mg/5ml

R

Paediatrics

 

Cetirizine tablets 10mg

F

 

Levocetirizine tablets 5mg

R

2nd line use only

Chlorphenamine injection 10mg/1ml

F

 

Chlorphenamine syrup 2mg/5ml

F

 

Chlorphenamine tablets 4mg

F

 

Cyproheptadine tablets 4mg

F

 

Fexofenadine tablets 30mg, 120mg, 180mg

R

2nd line use only

Promethazine elixir 5mg/5ml

F

 

Promethazine injection 25mg/1ml

F

 

Promethazine tablets 10mg, 25mg

F

 
Cetirizine is now the preferred non-sedating antihistamine. Levocetirizine or fexofenadine should be reserved for 2nd line use.

3.4.2 Adrenaline

 

'Epipen' 150mcg, 300mcg

R

Paediatrics