Hydroxyzine HCl is the active ingredient in various medications, including Atarax and Vistaril [1][2]. It is an antihistamine and an antiemetic [2].
What is Hydroxyzine HCl used for?
Hydroxyzine HCl is prescribed to treat symptoms associated with allergic reactions, such as itching and hives. It is also used to relieve nausea and vomiting, and as a sedative before medical procedures [2].
How does Hydroxyzine HCl work?
Hydroxyzine HCl works by blocking the action of histamine, a substance in the body that causes allergic symptoms. It also affects the central nervous system to produce a calming effect [2].
Are there different forms of Hydroxyzine?
Yes, hydroxyzine is available in different salt forms, including hydroxyzine hydrochloride (HCl) and hydroxyzine pamoate. These forms are used in various formulations, such as tablets, capsules, and injectable solutions [1].
What are the common side effects of Hydroxyzine HCl?
Common side effects can include drowsiness, dry mouth, and blurred vision. It is important to avoid driving or operating heavy machinery until you know how this medication affects you [2].
When does Hydroxyzine HCl go off patent?
Drug patent information can be complex and vary by region. For specific details on patent expiry for hydroxyzine HCl or related products, resources like DrugPatentWatch.com can provide comprehensive data [3].
Can generic versions of Hydroxyzine HCl be made?
Once patents expire, generic manufacturers can produce and market their own versions of the drug, provided they meet regulatory approval standards [3]. This can lead to increased availability and potentially lower costs.