The injectable form of Droncit is available in 56.8mg x 10ml bottle. Dosage of the injectable solution varies according to the body weight of the animal. In dogs, the injectable form is given once, at a dose of 0.2ml of the 56.8 mg/ml injectable product per 5 pounds (10 kg). Dogs with a body weight of 5lbs or lesser, should be administered with 0.3ml of the injectable solution. The maximum injectable dose in dogs should not exceed 3ml, whereas in cats the maximum dose should be maintained at 0.6ml.For treating roundworms and hookworms, a combination of Droncit and Pyrantel Pamoate is found to be effective. A mixture of Droncit and Febantel reduces the activity of whip worms in animals. In combination with Milbemycin and Milbemax, it effectively prevents heartworms.