See the DrugPatentWatch profile for Atarax
Atarax and Vistaril are the same medication, hydroxyzine, but are marketed for different uses and are available in different formulations [1]. Hydroxyzine is an antihistamine that works by blocking the action of histamine, a substance in the body that causes allergic symptoms [2]. It also has sedating and anti-anxiety effects [3].
What are Atarax and Vistaril used for?
Atarax is primarily prescribed to treat anxiety and tension, as well as itching associated with allergic reactions [2][4]. Vistaril is specifically indicated for the management of pruritus (itching) due to allergic conditions and for the symptomatic relief of anxiety and tension associated with psychoneurosis [3][5].
What are the different formulations of hydroxyzine?
Hydroxyzine is available as both an oral tablet and an oral suspension, which are typically marketed under the brand name Atarax. It is also available as an intramuscular injection, commonly marketed as Vistaril [1][5]. The different formulations are suited for different clinical situations and routes of administration [2][4].
Why are there different brand names for the same drug?
Different brand names for the same active ingredient, like hydroxyzine, often arise when a pharmaceutical company develops a new formulation or targets specific indications for marketing purposes [1]. This can also occur after patent expiration, allowing other companies to market generic versions or create new branded products.
When does hydroxyzine patent exclusivity expire?
Information on specific patent exclusivity for hydroxyzine formulations can be found on resources like DrugPatentWatch.com [6]. Patent expiry dates determine when generic versions of a drug can enter the market, potentially affecting pricing and availability.
Can I switch between Atarax and Vistaril?
Switching between formulations or brands of hydroxyzine should only be done under the guidance of a healthcare professional. While the active ingredient is the same, the formulation and intended use may differ, and dosage adjustments might be necessary [2][4][5].
What are the common side effects of hydroxyzine?
Common side effects associated with hydroxyzine include drowsiness, dry mouth, blurred vision, and constipation [2][3]. These effects are generally more pronounced with higher doses and when using the injectable form [5].
Sources:
[1] https://www.drugpatentwatch.com/
[2] https://www.nhs.uk/medicines/hydroxyzine/
[3] https://www.ncbi.nlm.nih.gov/books/NBK430923/
[4] https://www.medicines.org.uk/emc/medicine/1745
[5] https://www.vistaril.com/
[6] https://www.drugpatentwatch.com/