Hay fever: An allergy caused by pollen or dust in which the mucous membranes of the eyes and nose are inflamed, causing running of the nose and watery eyes
Sinusitis: Sinusitis means infection or inflammation of the sinuses, which are air-filled spaces inside the bones of the face
Antihistamine: Drugs that combat the histamine released during an allergic reaction by blocking the action of the histamine on the tissue
Created by KW
Video Animation: Understanding the Role of Antihistamines
Antihistamines are divided into two groups: older sedating drugs, and newer less sedating drugs
Polaramine is a sedating antihistamine; whilst the others are less sedating antihistamines
Most of these antihistamines (old and new) are safe to use in pregnancy; however there is more experience with the older sedating versions.
Both the old and the new versions have similar effectiveness
Individual response to an antihistamine varies widely; therefore it may be necessary to try a number of different antihistamines to see which is best tolerated and most effective.
Australian Medicines Handbook [Internet]. Adelaide SA: Australian Medicines Handbook; [updated 2017; cited 2017 June 11]. Available from: https://amhonline.amh.net.au/chapters/chap-01/antihistamines-01?menu=vertical#antihistamines-01.07