Its use in food allergies is unclear. Allergies are common. In the developed world, about 20% of people are affected by allergic rhinitis, about 6% of people have at least one food allergy, and about 20% have atopic dermatitis at some point in time. Depending on the country about 1â18% of people have asthma.
Best Answer: Atarax will not cause a false positive on a urine test. Atarax (hydroxyzine HCl) is unrelated chemically to the phenothiazines, reserpine, meprobamate, or the benzodiazepines. It is classed as a piperazine antihistamine. Still, you need to inform the tester about all medications you are taking.
In addition, they prevent histamine from binding and stimulating the cells. Hydroxyzine itself has no histamine-like activity. After ingestion, it is converted to its active form. The active form of hydroxyzine is a drug called cetirizine (Zyrtec). Although, both hydroxyzine and cetirizine act as antihistamines, hydroxyzine causes more sedation than cetirizine. The FDA approved hydroxyzine in 1956.