How to deworm a Teddy dog?

A Teddy can start deworming at 45 days, but since dewormers are toxic, if underweight wait until 2 months. From 1 to 6 months, deworm internally and externally every month; internal products include albendazole, praziquantel, febantel and ivermectin tablets, and external ones include fipronil and selamectin spot-ons.

After 6 months, if it rarely goes out and eats no raw food, internal deworming every 2 to 3 months is fine, but external deworming should remain monthly.