21. Since his first attack of waterlogged lungs, he had taken digitalis and diuretics. 22. Origins : Digitalis , about 22 species of biennials and short-lived perennials. 23. Other fatal accidents involve children drinking the water in a vase containing digitalis plants. 24. Increase of ectopic pacemaker activity can occur when pseudoephedrine is used concomitantly with digitalis . 25. A classic example is digitalis , long used as treatment for certain heart conditions. 26. Hutchins performed for several years in Of Cabbages and Kings, and with Digitalis . 27. Bouillaud was an early advocate of the drug digitalis for treatment of heart ailments. 28. Digitalis use may increase the risk that hypokalemia will produce life-threatening arrhythmias.29. His work on the involvement of calcium in the action of digitalis was prescient. 30. He gave the president digitalis to stimulate his heart and ordered changes in his diet.