What Allacan tablets are and what they are used for?

Allacan tablets block the effects of a substance called histamine in the body, which is involved in allergic reactions. It is used to treat hay fever, year-round allergies such as dust or pet allergies, and skin conditions like urticaria. Allacan tablets relieve symptoms like sneezing, a runny or blocked nose, itchy eyes, and skin rashes.