Zyrtec is the trade name of a second-generation antihistamine Cetirizine. Zyrtec is available in both US and Canada over-the-counter and is one of the most used drugs for treating allergies. Pharmacies in Turkey, Australia and New Zealand have been licensed to sell Zyrtec over-the-counter. Zyrtec is mainly used for treating allergies, Rhinovirus infection and the Kimura’s disease. Just like any other drug, Zyrtec has its side effects as well.
Claritin is the trade name of second generation histamine antagonist drug Loratadine. In various countries such as the US, Canada, Mexico and UK, Claritin can be bought over-the-counter which means that you do not require a prescription from a practising physician to purchase Claritin.