Stimulants increase alertness, attention, and energy, as well as elevate blood pressure, heart rate, and respiration. Historically, stimulants were used to treat asthma and other respiratory problems, obesity, neurological disorders, and a variety of other ailments.
Proper noun. A brand of medicine claimed to be effective against nausea, heartburn, indigestion, upset stomach and diarrhea, and having a bright pink color. 2003, Lani Robson Remender, Casino to Die For: The Hunt for Tears of the Sun, p. 224: See all those Pepto-Bismol colored housing developments to your right.
Pepto Bismol contains an ingredient called bismuth. Bismuth is one of the ingredients that helps settle your stomach when it is upset. However if you had something to eat that contains sulfate (which includes a wide variety of every day foods), it can react with the bismuth to create a black substance.