Ethchlorvynol is a sedative and hypnotic medication developed by Pfizer in the 1950s. In the United States Abbott Laboratories used to sell it under the tradename Placidyl. During their heyday, they were known on the street as "jelly-bellies" or "pickles". Since Abbott and Banner Pharmacaps, which manufactured the generic version, discontinued production in 1999, ethchlorvynol has no longer been available in the United States.
Read more about Ethchlorvynol: Use and Effects, Chemistry