Sold as Naqua, Metahydrin. Every FDA application for this active ingredient: 2 branded and 13 generic.
As of Nov 14, 2026, FDA lists 15 applications for Trichlormethiazide (sold as Naqua, Metahydrin), first approved Mar 9, 1960, with 0 new uses approved and 0 published complete response letters.
| Mar 9, 1960 | Naqua, NaquivalNDA 12265 · New molecular entity | Schering | 0 | Discontinued |
| May 16, 1977 | TrichlorexANDA 85630 | Lannett | 0 | Discontinued |
| Oct 5, 1977 | TrichlormethiazideANDA 85568 | Chartwell Rx | 4 | Discontinued |
| Dec 2, 1977 | TrichlormethiazideANDA 83855 | Watson Labs | 1 | Discontinued |
| Feb 6, 1978 | TrichlormethiazideANDA 83847 | Watson Labs | 1 | Discontinued |
| Oct 31, 1978 | TrichlormethiazideANDA 86458 | Watson Labs | 1 | Discontinued |
| Aug 11, 1980 | TrichlorexANDA 83436 | Lannett | 0 | Discontinued |
| Feb 6, 1981 | TrichlormethiazideANDA 87005 | Par Pharm | 11 | Discontinued |
| Feb 6, 1981 | TrichlormethiazideANDA 87007 | Par Pharm | 6 | Discontinued |
| Sep 16, 1994 | TrichlormethiazideANDA 86171 | Sandoz | 1 | Discontinued |
| — | TrichlormethiazideANDA 83462 | Watson Labs | 0 | Discontinued |
| — | TrichlormethiazideANDA 83967 | Impax Labs | 0 | Discontinued |
| — | TrichlormethiazideANDA 85962 | Watson Labs | 0 | Discontinued |
| — | TrichlormasANDA 86259 | Mast Mm | 0 | Discontinued |
| — | MetahydrinNDA 12594 | Sanofi Aventis US | 6 | 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