It was widely abused, known on the street as "red devils" or "reds." Among barbiturates, secobarbital carries a particularly high risk of abuse and addiction, which is largely responsible for it falling out of use.
Short-acting: This category of barbiturates includes pentobarbital and secobarbital. Intermediate-acting: This category of barbiturates includes amobarbital and butalbital. Long-acting: This category of barbiturates includes phenobarbital and primidone.
What drug category is secobarbital?
Seconal (secobarbital) is a drug that is classified as a barbiturate. Barbiturates are central nervous system depressant drugs.

Secobarbital, 5-allyl-5-(1-methylbutyl)barbituric acid (4.1. 14), is also synthesized by the same standard schema of reacting α-allyl-α-(1-methylbutyl)-malonic ester with urea

