Tobramycin/dexamethasone ( INNs , trade name Tobradex , Tobrason in Jordan  ) is a prescription medication in the form of eye drops and eye ointment , marketed by Alcon . The active ingredients are tobramycin % (an antibiotic ) and dexamethasone % (a corticosteroid ). It is prescribed for a wide spectrum of bacterial eye infections. Tobradex can also be used to clear or contract styes that are also found in the eye. It is prescribed for the treatment of pink eye in combination with bacterial infections. Because it contains a steroid, careful use with gradual reduction of doses is required.