I. G. O.
I. G. O. is an iodin ointment. It is said to be made by Dr. H. S. Lambdin, Peru, Kansas. In a circular distributed by the manufacturer, it is stated that “I. G. O. is a saturated solution of Iodine Gas in petrolatum at 130 degrees with oil of eucalyptus. The heat of the body liberates the iodine and it is absorbed as free iodine.”
A sample of I. G. O., received from a physician, was examined. It was found to be a black ointment, green in thin layers, with a slight odor like crude petroleum. By the methods used for the examination of Iodex, I. G. O. was found to contain 0.59 per cent. of free iodin.—(From Reports A. M. A. Chemical Laboratory, 1919, p. 104.)