Tapioca is made from the cassava root, which does not contain gluten, therefore tapioca is gluten free. Tapioca is a common ingredient in many gluten-free manufactured foods because it helps improve texture and moisture in the absence of gluten.
Hydroxyzine (atarax) has a typical half-life of 20-25 hours. Hydroxyzine (atarax) has a typical half-life of 20-25 hours.
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 . Although, both hydroxyzine and cetirizine act as antihistamines, hydroxyzine causes more sedation than cetirizine. When was hydroxyzine (Vistaril) approved by the FDA?