Final answer:
Claritin is a second generation antihistamine H1 blocker that has several advantages over first generation antihistamines. It is less likely to cause drowsiness, has a longer duration of action, and has a good safety profile.
Step-by-step explanation:
Claritin is a second generation antihistamine H1 blocker, which is good for several reasons. First, second generation antihistamines like Claritin are less likely to cause drowsiness compared to first generation antihistamines. This is because they do not readily cross the blood-brain barrier, so they have less effect on the central nervous system. Second, second generation antihistamines have a longer duration of action, which means they can provide relief from allergy symptoms for a longer period of time. Lastly, second generation antihistamines like Claritin have a good safety profile with few side effects.