Wondercide is made from plant-powered ingredients, and customers have shared with us for years that our products have been used safely alongside other treatments.
We aren't aware of any interactions but haven't specifically tested our products for use with other preventative medications since Wondercide was designed to replace monthly flea and tick topicals. Because of this, we can't guarantee how they will interact and it may be a good idea to check with your vet.
Whether you use Wondercide alone or with another treatment, before full use, be sure to start with a spot test on the back of the neck to be sure there are no sensitivities or allergies. With regular use, we think you’ll be able to keep your pets protected with Wondercide alone.