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Side Effects. Drontal has very few side effects and is generally safe. Some cats may vomit after receiving the dewormer. Rarely, a cat might appear disoriented or wobble around for a short time after taking Drontal. If your cat exhibits any side effects, call your veterinarian.
What is Drontal for Cats? Drontal is a broad-spectrum dewormer for cats and kittens to treat tapeworms, hookworms, and roundworms. Drontal is sold per tablet. For: Cats (weighing more than 1.5 lbs and over 1 month old) Benefits: Proven to eradicate the most common intestinal parasites; An easy single-dose administration.