amphetamine

"The teacher was referring to the homework assignment when she said it was due tomorrow. "

"Coffee is a stimulant that helps many students stay awake during late-night study sessions. "

"Every Thursday night, the local jazz club hosts free jam sessions where musicians can improvise and share their music with the audience. "

"Excitement-induced narcolepsy caused him to sleep through the most important events of his life."

"The box containing my old toys was stored in the attic. "

"My grandmother takes several medications for her high blood pressure. "

"The doctor prescribed aspirin."

"The science experiment involved mixing several chemicals together to see what would happen. "

"The specific of her success was her dedication to studying. "

"I had no shallots so I substituted onion."

"Because one enantiomer of the drug ibuprofen relieves pain effectively, while the other enantiomer is less active, chemists work to produce medicine with only the more effective form. "

"The chemist carefully weighed the freebase before dissolving it in the solvent for the experiment. "