Simplify your dog's deworming with RFD Liquid Wormer. A Pyrantel base dewormer for puppies and adult dogs, RFD eliminates large roundworms and hookworms. RFD is very palatable; dogs will readily lick from the bowl or mix the dose with a small amount of dog food. Treat puppies at 2, 3, 4, 6, 8 and 10 weeks of age, and lactating females 2-3 weeks after whelping. Adult dogs kept in heavily contaminated areas should be treated at monthly intervals.