RT Journal Article SR Electronic T1 EXPERIMENTS ON THE PHARMACOLOGY OF RESPIRATION IN THE RABBIT JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 235 OP 239 VO 79 IS 3 A1 V. E. HENDERSON A1 C. L. YI YR 1943 UL http://jpet.aspetjournals.org/content/79/3/235.abstract AB 1. Evidence is presented in this paper that the stimulant drugs, cocaine, nikethamide, metrazol, nicotine, cyanide, picrotoxin, strychnine and caffeine, in appropriate doses, produce an increase in respiratory rate by acting on the respiratory cells. 2. That the depressant drugs, morphine and barbitone, decrease respiratory rate by acting again on the respiratory cells.