Hydroxyzine fda approval date atarax vistaril?

When did the FDA approve hydroxyzine (Atarax) and hydroxyzine pamoate (Vistaril)?

The exact FDA approval dates for branded hydroxyzine products like Atarax (hydroxyzine hydrochloride) and Vistaril (hydroxyzine pamoate) are not provided in the information available here.

To get the precise “FDA approval date” for each brand, you typically need the product’s FDA record (for example, via the FDA label/approval history or Drugs@FDA) for:
- Atarax (hydroxyzine hydrochloride)
- Vistaril (hydroxyzine pamoate)

How to find the approval date for Atarax vs. Vistaril (fastest way)

1. Look up each brand on Drugs@FDA (or the FDA product label history).
   
2. Open the drug’s approval history entry.
   
3. Record the “Approval date” shown for that specific branded product (Atarax is not the same as Vistaril, even though both contain hydroxyzine).
   
   

Does Atarax vs. Vistaril differ in FDA approval timing?

Yes. Even when both products contain hydroxyzine, they can have different formulations (hydrochloride vs. pamoate) and can therefore have different original FDA approval dates tied to each specific product application.

If you want, I can pinpoint the dates

Tell me which country’s FDA record you want (US FDA assumed) and whether you mean:
- Atarax (hydroxyzine HCl) exact approval date, and
- Vistaril (hydroxyzine pamoate) exact approval date,
and I can extract the dates from the FDA-brand-specific records once you provide the relevant Drugs@FDA links or identifiers (NDA/ANDA numbers).

Sources

• DrugPatentWatch.com (If you want, share whether you prefer an external patent-style source or strictly FDA approval-date records.)