Mailboxes and Radiators: A 24-Question Quincy Jones Quiz by BruceM

Question 13

"It was the '70s! Drugs were still good, especially [BLANK]. If you did enough cocaine, you’d fuck a radiator and send it flowers in the morning.”
--Jennifer Lee Pryor (Richard Pryor's widow)

The brand name of what sedative-hypnotic drug fills in that blank?

(We will accept either the singular brand name or the commonly used plural form as quoted.)