No they are not the same. Cetirizine HCl is believed to be one of the metabolites that form from the consumption of hydroxyzine HCl. Unlike hydroxyzine, cetirizine is not reported to appreciably cross the blood-brain barrier, but it has been reported to be associated with dystonic reactions as well as sedation. Hydroxyzine reduces activity in the central nervous system. It also acts as an antihistamine that reduces the effects of natural chemical histamine in the body. Learn about Vistaril (Hydroxyzine) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications. Doctors give trusted answers on uses, effects, side-effects, and cautions: Dr. Cho on tramadol hcl 50 mg tablet: But it is a huge dose and you may do better with 3 mg + antihist + other natural sleep aids. 1800PetMeds offers Hydroxyzine HCl, a tablet for allergy treatment in dogs and cats at the most affordable prices. Get discount deals on all kinds of pet allergy treatment tablets at the largest pet store in America. La buspirone est un médicament utilisé pour traiter l'anxiété. Elle appartient à la classe des anxiolytiques non benzodiazépiniques [2]. Elle est dépourvue d'activité hypnotique, anticonvulsivante et myorelaxante, ce qui n'est pas le cas des benzodiazépines, mais conserve toutefois une faible action sédative. Hydroxyzine reduces activity in the central nervous system. It also acts as an antihistamine that reduces the effects of natural chemical histamine in the body. They're given interchangeably everywhere I've ever worked. At my last hospital, the docs could order Atarax (hcl) or Vistaril (pamoate) and they were getting hcl, no matter what. How to use Hydroxyzine Hcl. Take this medication by mouth with or without food as directed by your doctor, usually three or four times daily. If you are using the liquid form of this medication. Hydroxyzine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of itching, or hives on the skin.