| ARCHITECT IVALPROIC ACID REAGENTS AND ARCHITECT IVALPROIC ACID CALIBRATORS, MODELS 1P35, 1P35 (K090358) | Abbott Laboratories, Inc. | 2009-08-06 |
| ONLINE VALPROIC ACID (K060690) | Roche Diagnostics Corp. | 2006-08-08 |
| ADVIA IMS VALPROIC ACID METHOD (K042807) | Bayer Healthcare, LLC | 2005-02-08 |
| VITROS CHEMISTRY PRODUCTS VALP REAGENT; VITRO CHEMISTRY PRODUCTS CALIBRATOR KIT 12; VITROS CHEMISTRY PRODUCTS TDM PERFOS (K042476) | Ortho-Clinical Diagnostics, Inc. | 2004-12-01 |
| ROCHE ONLINE TDM VALPROIC ACID (K032049) | Roche Diagnostics Corp. | 2003-08-22 |
| SYNCHRON SYSTEMS VALPROIC ACID (V-PA) REAGENT (K031870) | Beckman Coulter, Inc. | 2003-07-15 |
| QMS / MULTIGENT VALPROIC ACID REAGENT, PART #396075 (K030405) | Seradyn | 2003-04-28 |
| RANDOX VALPROIC ACID (K011649) | Randox Laboratories, Ltd. | 2002-01-15 |
| EMIT 2000 VALPROIC ACID ASSAY, MODEL OSR4G229UL (K011947) | Syva Co. | 2001-07-02 |
| EMIT 2000 VALPROIC ACID ASSAY, EMIT 2000 VALPROIC ACID CALIBRATORS, MODEL 4G019UL, 4G109UL (K002551) | Dade Behring, Inc. | 2000-10-11 |
| IMMULITE VALPROIC ACID, IMMULITE 2000 VALPROIC ACID, CATALOG # LKVA1, LKVA5 & L2KVA2, L2KVA6 (K000005) | Diagnostic Products Corp. | 2000-03-03 |
| DIMENSION(R) VALPROIC (VALP) ACID METHOD (K982880) | Dade Behring, Inc. | 1998-08-25 |
| ACE VALPROIC ACID REAGENT, AED CALIBRATORS (K973581) | Schiapparelli Biosystems, Inc. | 1997-11-12 |
| SIGMA DIAGNOSTICS VALPROIC ACID FPIA REAGENT SET, SIGMA DIAGNOSTICS VALPROIC ACID FPIA CALIBRATORS (K972132) | Sigma Diagnostics, Inc. | 1997-07-30 |
| VALPROIC ACID ASSAY FOR THE TECHNICON IMMUNO 1 SYSTEM (K964442) | Bayer Corp. | 1996-12-18 |
| VALPROIC ACID EIA TEST (K961988) | Diagnostic Reagents, Inc. | 1996-07-16 |
| SYNCHRON SYSTEMS VALPROIC ACID (VPA) REAGENT (K961256) | Beckman Instruments, Inc. | 1996-05-15 |
| COBAS FP REAGENT APPLICATION FOR FREE VALPROIC ACID (K953224) | Roche Diagnostic Systems, Inc. | 1995-10-30 |
| VALPROIC ACID FPIA REAGENT SET AND CALIBRATORS (K943866) | Sigma Diagnostics, Inc. | 1994-11-10 |
| AXSYM VALPROIC ACID (K941615) | Abbott Laboratories | 1994-08-16 |
| VALPROIC ACID (K936208) | Seradyn, Inc. | 1994-03-11 |
| BIOTRACK VALPROIC ACID TEST CARTRIDGE (K934061) | Biotrack, Inc. | 1993-12-29 |
| CEDIA VALPORIC ACID ASSAY (K930734) | Microgenics Corp. | 1993-09-21 |
| COBAS-FP REAGENT FOR VALPROIC ACID AND CALIBRATORS (K925003) | Roche Diagnostic Systems, Inc. | 1992-12-03 |
| BECKMAN VALPROIC ACID REAGENT (K922844) | Beckman Instruments, Inc. | 1992-10-26 |
| INNOFLUOR(TM) VALPROIC ACID REAGENT SET (K911688) | Intl. Bioclinical, Inc. | 1991-07-05 |
| MODIFIED OPUS VALPROIC ACID TEST SYSTEM (K901538) | Pb Diagnostic Systems, Inc. | 1990-06-26 |
| VALPROIC ACID (FPIA) KIT (K895569) | Tudor Laboratories, Inc. | 1989-10-03 |
| COBAS-FP REAGENT FOR VALPROIC ACID & CALIBRATORS (K891581) | Roche Diagnostic Systems, Inc. | 1989-08-15 |
| EMIT VALPROIC ACID ASSAY (K862652) | Syva Co. | 1986-07-29 |
| EMIT AED VALPROIC ACID ASSAY (K832719) | Syva Co. | 1983-10-04 |
| AMES TDA VALPROIC ACID TEST (K830789) | Miles Laboratories, Inc. | 1983-04-12 |
| SYVA ADVANCE EMIT AED VALPROIC ACID ASSA (K822933) | Syva Co. | 1982-10-27 |
| CYBREX VALPROIC ACID (K803236) | Abbott Laboratories | 1981-01-28 |
| EMIT VALPROIC ACID ASSAY (K801207) | Syva Co. | 1980-06-20 |