UK Lords Seek Curbs on Pet Parasite Drugs as 2 Pesticides Pollute Rivers
Updated
Updated · New Scientist · Aug 5
UK Lords Seek Curbs on Pet Parasite Drugs as 2 Pesticides Pollute Rivers
3 articles · Updated · New Scientist · Aug 5
Summary
A House of Lords committee said flea and tick treatments should be sold only after advice from a vet, pharmacist or qualified pet-shop staff, not as routine monthly purchases.
At least two pesticides in common products—fipronil and imidacloprid—are reaching UK rivers at levels high enough to harm invertebrates, with knock-on risks for fish and birds.
The report said regulators approved these medicines without rigorous environmental or human-health assessment and are too influenced by industry, leaving the true scale of harm unknown.
Evidence to the committee traced contamination to pet bathing, bedding washes, hand-washing and shed fur; it recommended extending the no-bathing period for dogs after treatment from 4 days to 28.
The panel said use should be minimized until independent research clarifies risks, warning newer isoxazoline tablets may shift pollution into soils and sewage sludge rather than water.