As an application for the eye, nitrate of silver, 3 grains to the ounce of soft water, with the addition of 1 grain sulphate of morphia, may be used several times a day.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
When the pain is very great, hypodermic injections of 6 grains of morphia may be administered every six hours.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
morphia is present in good opium to the extent of about 10 per cent.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler