Which drug is known for treating chronic urticaria and dermatitis?

Vistaril, which is the selected answer, is known for its effectiveness in treating chronic urticaria (hives) and dermatitis due to its antihistamine properties. It contains hydroxyzine, a medication that acts to alleviate itching and reduce allergic reactions, making it suitable for managing symptoms associated with skin conditions like urticaria and various types of dermatitis.

In contrast, the other medications listed serve different purposes. Bentyl is primarily used to relieve intestinal cramping and spasms, Cipro is an antibiotic used to treat bacterial infections, and Amaryl is an antidiabetic medication that helps control blood sugar levels in individuals with type 2 diabetes. These options do not address the symptoms of chronic urticaria and dermatitis, making Vistaril the appropriate choice for the question posed.