High doses can last for a another medical hours, so it may be better to give cetirizine in the evening rather than the morning. The extent of absorption of cetirizine is not reduced with food, although the rate of absorption is decreased.
Possible side effects of Ressital include:
Ressital is used to treat diseases such as: Allergic Rhinitis, Urticaria.
It is important to follow this schedule to reduce the risk of serious side effects. Try to take the correct number of doses each day, but do not take two doses at the same time to make up for a missed dose.