enantiomers

Thalidomide, one of the most infamous drugs of all, caused severe birth defects in the children of pregnant women who took the drug for nausea in the 1950s. Its story has been repeated over and over – mostly wrong. Here's why.
Adderall, one of the primary drugs to treat ADHD, has been in the news lately because of a shortage. But there are a number of different ADHD drugs that contain amphetamine – the active ingredient in Adderall. Perhaps this will help clarify what's going on.