RT Journal Article SR Electronic T1 THE PHARMACOLOGICAL PROPERTIES OF THREE NEW ANTIHISTAMINIC DRUGS JF Journal of Pharmacology and Experimental Therapeutics JO J Pharmacol Exp Ther FD American Society for Pharmacology and Experimental Therapeutics SP 45 OP 52 VO 95 IS 1 A1 A. M. Lands A1 James O. Hoppe A1 O. H. Siegmund A1 F. P. Luduena YR 1949 UL http://jpet.aspetjournals.org/content/95/1/45.abstract AB 1. WIN 2848 is a highly active antagonist of histamine and is more potent in its antihistaminic actions than are the chioro- and bromo- substituted analogs, WIN 2875 and WIN 2876. 2. The antihistaminic drugs investigated here stimulate the isolated guinea pig uterus. 3. WIN 2848, in a dose of 0.013 mgm./kgm., protects guinea pigs against 2.8 intravenous lethal doses of histamine. 4. WIN 2848 diminishes the effects of histamine given percutaneously to man. 5. WIN 2848 does not appear to be significantly more toxic than structurally similar antihistaminic drugs.