Chlorfenvinphos
Chlorfenvinphos is an organophosphorus insecticide and acaricide. In agricultural products chlorfenvinphos was formerly used in Australia for the control of insect pests in pasture, lucerne, potatoes and mushrooms. In veterinary products chlorfenvinphos continues to be used in the control of ectoparasites on cattle, horses, deer, goats and working dogs.
Chlorfenvinphos review
Status: review completed October 2011
In Dec 1996 the APVMA (formerly the NRA) began a review of chlorfenvinphos as part of the Existing Chemical Review Program which was established to systematically review a number of Agvet chemicals which had been on the Australian market for some time. Chlorfenvinphos was nominated for review because of concerns about worker health and safety and the potential for adverse environmental effects.
In Dec 2000 the APVMA released the Chlorfenvinphos Interim Review Report (PDF, 368kb). The APVMA was satisfied that the use patterns of chlorfenvinphos could be varied to manage the potential risks identified in the report.
The APVMA recommended cancelling agricultural uses of chlorfenvinphos and placing restrictions on veterinary uses. This included strengthening label warnings and modifying the design of containers to minimise worker exposure.
An assessment of the safety directions for chlorfenvinphos products was subsequently completed in January 2003. As a result revised safety directions were recommended to reduce worker exposure risk. These changes have been adopted in the First Aid Instructions and Safety Directions Handbook.
Labels for all veterinary chlorfenvinphos products have been updated in accordance with the recommendations from the Chlorfenvinphos Interim Review Report.
In addition, there was one chlorfenvinphos product that contained instructions for use on sheep and was therefore also subject to the outcomes of the sheep ectoparasiticides review. In 2011, the registrant voluntarily amended labels to no longer include the instructions for use on sheep enabling the APVMA to finalise the review of chlorfenvinphos.
As no further changes to existing products have been identified, a final report for chlorfenvinphos is not warranted.
| Review Report | Date |
|---|---|
Chlorfenvinphos Interim Review Report: |
Dec 2000 |
| Review of the Safety Directions for Chlorfenvinfos Products | Jan 2003 |
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Title |
Date |
|---|---|
| Media Release: Changed rules for the insecticide, chlorfenvinphos | Dec 2000 |
| Media Release: Future of organophosphate depends on new data that justifies continued use | Sep 1999 |
| Chlorfenvinphos Draft Report* | Sep 1999 |
| * Contact the APVMA for copies of this document. | |