Loratadine vs Cetirizine
Loratadine and Cetirizine are both second-generation antihistamines. They are more preferred compared to first-generation antihistamines such as diphenhydramine and chlorpheniramine due to their non-drowsy effect. This is because second-generation antihistamines do not cross the blood-brain barrier, unlike first-generation antihistamines. Another difference between first and second-generation antihistamines is that the first-generation requires multiple intakes of the