Slang term for Barbiturates.
Barbiturates, such as phenobarbital and secobarbital, are any of various
derivatives of barbituric acid used
especially as sedatives, hypnotics, and antispasmodics.
Barbiturates have largely been supplanted by Benzodiazepines (such as Valium, Xanax) due to addictive
potential, extensive abuse, and severe withdrawal syndromes.