What is the primary treatment for Oslerus osleri infection?

The primary treatment for Oslerus osleri infection is fenbendazole. This anthelminthic drug is effective against various parasitic infections, including those caused by lungworms like Oslerus osleri, which primarily affect dogs. Fenbendazole works by inhibiting the metabolism of the worms, leading to their eventual death.

In the case of Oslerus osleri, the parasite is usually located in the bronchi and can cause respiratory issues in infected dogs. Fenbendazole has been demonstrated to be effective in eliminating these parasites, thus alleviating the clinical signs associated with the infection.

Other options, while used to treat different types of parasites, do not have the necessary efficacy against Oslerus osleri. For example, praziquantel is more commonly used to treat cestode (tapeworm) infections, and ivermectin is effective against several nematodes and some ectoparasites but is not typically effective for lungworm. Droncit, a brand name for praziquantel, follows the same application method as praziquantel. Therefore, fenbendazole stands out as the most appropriate choice for treating Oslerus osleri.