| UTAK LABORATORIES TOXICOLOGY CONTROL (K903061) | Utak Laboratories, Inc. | 1991-04-12 |
| TRACE ELEMENTS SERUM TOXICOLOGY CONTROL (K883147) | Utak Laboratories, Inc. | 1988-10-06 |
| SERUM VANCOMYCIN TOXICOLOGY CONTROL (K862419) | Utak Laboratories, Inc. | 1986-11-13 |
| BENZODIAZEPINES TOXICOLOGY CONTROL (K862418) | Utak Laboratories, Inc. | 1986-11-13 |
| SERUM CLONAZEPAM TOXICOLOGY CONTROL (K862421) | Utak Laboratories, Inc. | 1986-11-05 |
| UTAK-STABBS TOXICOLOGY CONTROL (K862420) | Utak Laboratories, Inc. | 1986-08-04 |
| TRICYCLIC ANTIDEPRESSANTS (K831736) | Utak Laboratories, Inc. | 1983-07-28 |
| MAPROTILINE (K831735) | Utak Laboratories, Inc. | 1983-07-26 |
| AMOXAPINE 8-HYDRO-XYAMOXAPINE (K831734) | Utak Laboratories, Inc. | 1983-07-26 |
| CAFFINE TOXICOLOGY CONTROL (K831738) | Utak Laboratories, Inc. | 1983-07-26 |
| FLURAZEPAM TOXICOLOGY CONTROL (K831741) | Utak Laboratories, Inc. | 1983-07-26 |
| TRICYCLIC ANTIDEPRESSNATS VI (K831737) | Utak Laboratories, Inc. | 1983-07-19 |
| PENTOBARBITAL TOXICOLOGY CONTROL (K831739) | Utak Laboratories, Inc. | 1983-07-06 |
| DISOPYRAMIDE N-DESALKYLDISOPYRAMIDE (K831740) | Utak Laboratories, Inc. | 1983-07-06 |
| TOXICOLOGY CONTROL (K810201) | Utak Laboratories, Inc. | 1981-02-04 |
| TRICYCLIC ANTIDEPRESSANTS I TX CONTROL (K800888) | Utak Laboratories, Inc. | 1980-05-02 |
| ANTICONVULSANTS TOXICOLOGY CONTROL (K800882) | Utak Laboratories, Inc. | 1980-04-29 |
| CARDIACS II TOXICOLOGY CONTROL (K800884) | Utak Laboratories, Inc. | 1980-04-29 |
| BARBITURATES TOXICOLOGY CONTROL (K800885) | Utak Laboratories, Inc. | 1980-04-29 |
| HYPNOTICS PLUS ACETAMINOPHEN TX CONTROL (K800886) | Utak Laboratories, Inc. | 1980-04-29 |
| HYPNOTICS PLUS SALICYLATE TX CONTROL (K800887) | Utak Laboratories, Inc. | 1980-04-29 |
| CARDIACS I TOXICOLOGY CONTROL (K800883) | Utak Laboratories, Inc. | 1980-04-29 |
| TRICYCLIC ANTIDEPRESSANT II TX CONTROL (K800889) | Utak Laboratories, Inc. | 1980-04-29 |