Aconite is a valuable drug in the hands of the intelligent practitioner, but my experience leads me to believe that not infrequently animals are lost by its injudicious use, for in many febrile conditions it is positively Contraindicated, owing to its action upon the heart.
"Special Report on Diseases of Cattle"
U.S. Department of Agriculture J.R. Mohler
Its use is Contraindicated in gastric ulcer.
"The Medicinal Plants of the Philippines"
T. H. Pardo de Tavera
Needless to say, hypnosis is Contraindicated in many emotional problems because of the very nature of the problem itself.
"A Practical Guide to Self-Hypnosis"
Melvin Powers