noun Physiology, Pharmacology.
Examples from the Web for antihistamine
“He gave me a blue pill, which he said was an antihistamine,” said Chelan.Two New Bill Cosby Accusers Come Forward: ‘We Challenge Mr. Cosby to End This Nightmare’|Marlow Stern|December 3, 2014|DAILY BEAST
And, Zyrtec, an antihistamine, was the highest grossing nonfood of 2008, coming in at $316 million in sales.Blame Climate Change for Your Terrible Seasonal Allergies|Kent Sepkowitz|May 14, 2014|DAILY BEAST
Elvis also had the painkillers morphine and Demerol; tranquilizers Placidyl and Valium; and Chlorpheniramine, an antihistamine.