Sold as Vistaril. Every FDA application for this active ingredient: 2 branded and 35 generic.
As of Nov 15, 2026, FDA lists 37 applications for Hydroxyzine Pamoate (sold as Vistaril), first approved Jun 3, 1959, with 0 new uses approved and 0 published complete response letters.
| Hydroxyzine Pamoate | Part D | $20.6M | +8% | 416,383 |
| Vistaril | Part D | $0K | -79% | 13 |
| Jun 3, 1959 | VistarilNDA 11795 · New dosage form | Pfizer | 10 | Discontinued |
| Nov 15, 1968 | VistarilNDA 11459 · New active ingredient | Pfizer | 11 | Discontinued |
| Dec 14, 1981 | Hydroxyzine PamoateANDA 86183 | Sandoz | 22 | Marketed |
| Dec 14, 1981 | Hydroxyzine PamoateANDA 87479 | Sandoz | 19 | Marketed |
| Mar 5, 1982 | Hydroxyzine PamoateANDA 87761 | Ivax Sub Teva Pharms | 21 | Discontinued |
| Mar 5, 1982 | Hydroxyzine PamoateANDA 87760 | Ivax Sub Teva Pharms | 19 | Discontinued |
| Jul 1, 1982 | Hydroxyzine PamoateANDA 86705 | Watson Labs | 1 | Discontinued |
| Jul 1, 1982 | Hydroxyzine PamoateANDA 86840 | Watson Labs | 1 | Discontinued |
| Aug 16, 1982 | Hydroxyzine PamoateANDA 87767 | Watson Labs | 4 | Discontinued |
| Aug 16, 1982 | Hydroxyzine PamoateANDA 87790 | Watson Labs | 4 | Discontinued |
| Oct 5, 1982 | Hydroxyzine PamoateANDA 86728 | Watson Labs | 0 | Discontinued |
| Sep 19, 1983 | Hydroxyzine PamoateANDA 88392 | Vangard | 0 | Discontinued |
| Sep 19, 1983 | Hydroxyzine PamoateANDA 88393 | Vangard | 0 | Discontinued |
| Feb 29, 1984 | Hydroxyzine PamoateANDA 88593 | Duramed Pharms Barr | 5 | Discontinued |
| Feb 29, 1984 | Hydroxyzine PamoateANDA 88595 | Duramed Pharms Barr | 3 | Discontinued |
| Jun 15, 1984 | Hydroxyzine PamoateANDA 88488 | Barr Labs | 32 | Marketed |
| Jun 15, 1984 | Hydroxyzine PamoateANDA 88496 | Barr | 30 | Marketed |
| Jun 15, 1984 | Hydroxyzine PamoateANDA 88487 | Barr Labs | 31 | Marketed |
| Mar 4, 1985 | Hy-Pam "25"ANDA 88713 | Teva | 0 | Discontinued |
| Jan 2, 1987 | Hydroxyzine PamoateANDA 89031 | Superpharm | 2 | Discontinued |
| Jan 2, 1987 | Hydroxyzine PamoateANDA 89032 | Superpharm | 1 | Discontinued |
| Jan 2, 1987 | Hydroxyzine PamoateANDA 89033 | Superpharm | 2 | Discontinued |
| Jun 28, 1991 | Hydroxyzine PamoateANDA 81127 | Beximco Pharms USA | 1 | Discontinued |
| Jun 28, 1991 | Hydroxyzine PamoateANDA 81128 | Sandoz | 1 | Discontinued |
| Jun 28, 1991 | Hydroxyzine PamoateANDA 81129 | Sandoz | 1 | Discontinued |
| Jul 31, 1991 | Hydroxyzine PamoateANDA 81165 | Watson Labs | 8 | Discontinued |
| Jul 15, 1996 | Hydroxyzine PamoateANDA 40156 | Impax Labs Inc | 6 | Marketed |
| Jun 3, 2013 | Hydroxyzine PamoateANDA 201507 | Heritage Pharma | 2 | Marketed |
| — | Hydroxyzine PamoateANDA 86695 | Watson Labs | 0 | Discontinued |
| — | Hydroxyzine PamoateANDA 86697 | Watson Labs | 0 | Discontinued |
| — | Hydroxyzine PamoateANDA 86698 | Watson Labs | 0 | Discontinued |
| — | Hydroxyzine PamoateANDA 87656 | Par Pharm | 0 | Discontinued |
| — | Hydroxyzine PamoateANDA 87657 | Par Pharm | 0 | Discontinued |
| — | Hydroxyzine PamoateANDA 87658 | Par Pharm | 0 | Discontinued |
| — | Hydroxyzine PamoateANDA 88594 | Duramed Pharms Barr | 4 | Discontinued |
| — | Hydroxyzine PamoateANDA 89145 | Par Pharm | 0 | Discontinued |
| — | Hydroxyzine PamoateANDA 89146 | Par Pharm | 0 | Discontinued |
Applications, approvals and products come from FDA's Drugs@FDA data files, refreshed weekly, grouped by active ingredient as FDA spells it. Complete response letters are FDA's published letters. Medicare spending is CMS's Part D and Part B dashboard, matched to this ingredient by generic name; shortages are FDA's shortage list, matched by application number; clinical trials are ClinicalTrials.gov studies naming the ingredient as an intervention, refreshed daily; safety programs are FDA's REMS list, matched by application number or, for shared programs, by ingredient. Drugs@FDA