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Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.