is zyrtec same as loratadine?
Zyrtec is a brand name for the drug cetirizine and Claritin is a brand name for the drug loratadine. Both cetirizine and loratadine are popular antihistamines with many similarities but there are some important differences. Zyrtec (cetirizine) and Claritin (loratadine) are second-generation antihistamines.