Amytal is a brand-name barbiturate drug used as a sedative-hypnotic medication that depresses the central nervous system. This medication acts as a powerful tranquilizer and can be highly addictive when misused. There are several synonyms for Amytal, including pentothal, thiopentone sodium, and sodium thiopental. Pentothal is a short-acting drug used as an anesthetic agent to induce general anesthesia. Thiopental sodium is another barbiturate drug also used as a general anesthetic agent. Sodium thiopental is the sodium salt of thiopental, and it has similar sedative effects. All these synonyms have the potential for abuse and addiction and should only be used under the supervision of a healthcare provider.