Increxxa - Prescription RequiredIncrexxa Available in 100, 250, and 500 mL Generic to the name brand Draxxin. Increxxa contains tulathromycin, the same macrolide antibiotic veterinarians and the cattle industry have depended on to control and treat bovine respiratory disease (BRD) in cattle for more than 15 years. Its a go to antibiotic for beef and dairy producers because of its one time use, extended duration of action, ease of administration and broad spectrum control. Key