Interceptor is not available due to the product not being able to be shipped out from the warehouse where another human medicine is made which is under investigation so nothing from the facility whether for humans or animals can be shipped as per the company. They don't know when the shipping will begin again. I live in Tennessee and the vet says we have a whipworm problem here. The vet suggests using Iverhart Max but it doesn't cover whipworm; the vet doesn't like Hartguard. Any help would be appreciated.