Hi, welcome to the forum, levocitirizine is not yet available as OTC drugs. Anti histamines which are available as OTC are
First-Generation OTC Antihistamines
Brompheniramine
Chlorpheniramine
Dimenhydrinate
Diphenhydramine
Doxylamine
Second-Generation OTC are Loratadine and Cetirizine
Take care and regards.
Sorry I miss spelled that - Xyzal.
I checked my favorite drug site and they are the same. OTC Zyrtec is essentially the same medication. Some people say that Xyzal is a more 'purified" form of the chemical. You can try Zyrtec to see if it works as well.
Take care.
Is that Zyzal? If so, it isn't available OTC in the US yet.