Phenobarbital (Acro-lase, Barbidonna Elixir, Belladenal, Bellergal-S, Bronkotabs, Donnapine, Donnatal, Hyosophen, Kinesed, Levsin-PB, Lufyllin-EPG, Mudrane GG, Nembutal, Quadrinal, Rexatal, Solfoton Tedral) is an orally ingested or injected drug that depresses the sensory cortex, decreases motor activity, alters cerebellar function, and produces drowsiness, sedation and hypnosis. It is a respiratory depressant and ultimately, barbiturates interfere with the cortexs impulse transmission. It is used in medicine to reduce anxiety, nervous tension, and insomnia. Prevent seizures and convulsions and as a pre-operative medication Research Phenobarbital
Lead is a soft, malleable, metallic element with the symbolPb. It occurs in many ores, the most important of which is galena. It is a very dense metal, and is used as a shield in environments where radiation abounds, such as x-rays and the nuclear industry.