While diarrhea is not a common side effect of Frontline Plus, some dogs may experience gastrointestinal upset or changes in bowel movements after application. However, it's essential to note that adverse reactions to Frontline Plus are relatively rare.
Frontline Plus contains active ingredients like fipronil and (S)-methoprene, which are primarily targeted at killing fleas, ticks, and preventing flea eggs and larvae from developing. These ingredients are designed to be topical and are not typically known to cause gastrointestinal issues.
If your dog experiences diarrhea or any other unusual symptoms after being treated with Frontline Plus, it's important to monitor them closely. If the diarrhea persists or worsens, or if your dog shows other concerning symptoms such as vomiting, lethargy, or loss of appetite, it's best to contact your veterinarian for further evaluation and guidance.
Diarrhea can have various causes, including dietary indiscretion, changes in diet, infections, parasites, or reactions to medications. Your veterinarian can help determine the underlying cause of your dog's diarrhea and recommend appropriate treatment options. They can also provide advice on flea and tick control alternatives if necessary.