Browse hierarchy: [Clinical Toxicology (TX)](/submissions/TX) → [Subpart D — Clinical Toxicology Test Systems](/submissions/TX/subpart-d%E2%80%94clinical-toxicology-test-systems) → [21 CFR 862.3240](/submissions/TX/subpart-d%E2%80%94clinical-toxicology-test-systems/862.3240) → DMR — Solution, M-Nitrophenol, Specific Reagent For Cholinesterase

# DMR · Solution, M-Nitrophenol, Specific Reagent For Cholinesterase

_Clinical Toxicology · 21 CFR 862.3240 · Class 1_

**Canonical URL:** https://fda.innolitics.com/submissions/TX/subpart-d%E2%80%94clinical-toxicology-test-systems/DMR

## Overview

- **Product Code:** DMR
- **Device Name:** Solution, M-Nitrophenol, Specific Reagent For Cholinesterase
- **Regulation:** [21 CFR 862.3240](/submissions/TX/subpart-d%E2%80%94clinical-toxicology-test-systems/862.3240)
- **Device Class:** 1
- **Review Panel:** [Clinical Toxicology](/submissions/TX)

## Identification

A cholinesterase test system is a device intended to measure cholinesterase (an enzyme that catalyzes the hydrolysis of acetylcholine to choline) in human specimens. There are two principal types of cholinesterase in human tissues. True cholinesterase is present at nerve endings and in erythrocytes (red blood cells) but is not present in plasma. Pseudo cholinesterase is present in plasma and liver but is not present in erythrocytes. Measurements obtained by this device are used in the diagnosis and treatment of cholinesterase inhibition disorders (e.g., insecticide poisoning and succinylcholine poisoning).

## Classification Rationale

Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 862.9.

## Recent Cleared Devices (1 of 1)

| Record | Device Name | Applicant | Decision Date | Decision |
| --- | --- | --- | --- | --- |
| [K790986](https://fda.innolitics.com/submissions/TX/subpart-d%E2%80%94clinical-toxicology-test-systems/DMR/K790986.md) | RF CONTROLS | Wampole Laboratories | Jun 28, 1979 | SESE |

## Top Applicants

- Wampole Laboratories — 1 clearance

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**Source:** [https://fda.innolitics.com/submissions/TX/subpart-d%E2%80%94clinical-toxicology-test-systems/DMR](https://fda.innolitics.com/submissions/TX/subpart-d%E2%80%94clinical-toxicology-test-systems/DMR)

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