If the throes are very violent, or the womb strongly contracted on the calf, it may be best to seek relaxation by giving chloroform, or 2 ounces of laudanum, or 2 ounces of Chloral hydrate.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
I sent the hotel porter for a draught of Chloral.
"To-morrow?"
Victoria Cross
Any drug which has this deadening effect on the nerves is called a narcotic; and it is in this class that alcohol belongs, together with the stronger narcotics, opium, chloroform, ether, and Chloral.
"A Handbook of Health"
Woods Hutchinson