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UK Waterways at Risk From Pet Flea Treatments
13 May
Summary
- Flea treatments found in UK waterways pose a threat to aquatic insects.
- Incorrect application or swimming too soon causes contamination.
- Owners urged to follow strict guidelines to protect pets and environment.

The UK government has alerted pet owners to the environmental risks associated with flea and tick treatments. Ingredients from these common pet products have been identified in the nation's waterways at levels that can harm aquatic insect life, including mayflies and dragonflies. These substances enter water bodies either when pets swim too soon after treatment or through wastewater from incorrect application.
While these treatments are crucial for protecting millions of pets, the Veterinary Medicines Directorate (VMD) noted concerns about improper usage. The VMD recommends washing pets a few days prior to applying treatments rather than afterwards. Applying the product at night or before work can also minimize direct contact.
Strict adherence to product instructions is essential. Application should be directly to the skin, not the fur. Following application, owners must avoid touching the treated area until it is dry and ensure pets do not swim for a minimum of four days. Pipettes and unused medicines require proper disposal, with no rinsing or recycling of pipettes.
The 'Be Spot On' campaign aims to educate pet owners on how to use these treatments responsibly. This initiative provides practical advice to ensure the safety of pets and the protection of aquatic ecosystems, highlighting the collaboration between the government and the veterinary and retail sectors.