This document describes an antibiotic liquid medication for poultry called Tyfos that contains 200 mg of tylosin and 100 mg of fosfomycin per 1 mL. It is a broad-spectrum antibiotic indicated for treating various poultry diseases caused by gram-positive, gram-negative, and mycoplasma bacteria such as mycoplasmosis, colibacillosis, and infections from Staphylococcus, Listeria, and organisms susceptible to tylosin or fosfomycin. The recommended dosage is 1 liter of Tyfos per 1000 liters of drinking water or as advised by a veterinarian.