There are now exactly 3 antihistamines I recommend, for different reasons..
Cetirizine Hydrochloride
Desloratadine
Those 2 are a recent-generation of antihistamines, & both are remarkable compared with the make-you-incompetent-to-fucking-walk-straight antihistmines I grew up with.
Benadryl
I've read that immediately chewing your max-dose of Benadryl can help with things like allergic-reaction to bee-stings, snake-bite, etc, & therefore should be in one's 1st-aid kit.
Now they've got liqui-gels?
Maybe I should fix my 1st-aid kit, then..
Oh, from what I've read, the Desloratadine is better than the Loratadine: it has been noted to produce fewer side-effect harms, in studies.
ttbomk, Loratadine requires more biological processing by our bodies, to do its work, so its biochemistry cost is higher, to the one taking it.
I've found the generic brands of Cetirizine & Desloratadine work fine, for me.