Tobi is used to treat Cystic Fibrosis, Sepsis. The generic version is called Tobramycin. The average Tobi cash price is about $788.92 for a supply of Nebulization Solution 300 MG/5ML 30 pcs. You can reduce your Tobi cost by up to 75% with our free Tobi discount card. Bring it to a participating pharmacy near you to save on your prescription medication.