Soil Profile â Soil Horizon: O horizon, A Horizon, E horizon, B Horizon, C Horizon or Parent rock, R Horizon or Bedrock. Soil. Soil is the thin top layer on the earthâs crust comprising rock particles mixed with organic matter. Pedology is the study of soils in their natural environment.
GENERIC NAME: tramadol and acetaminophen. BRAND NAME: Ultracet. DRUG CLASS AND MECHANISM: Ultracet is a combination of two drugs, tramadol (Ultram) and acetaminophen (Tylenol) that is used to relieve moderate, acute pain such as pain following dental or surgical procedures. Tramadol and acetaminophen each relieve pain, but they do so by different mechanisms.
From the WebMD Archives. April 23, 2007 -- The FDA today approved the first generic versions of Ambien (zolpidem tartrate) immediate-release tablets. Zolpidem tartrate is a sedative-hypnotic drug used for the short-term treatment of insomnia. The FDAâs Office of Generic Drugs ensures that generic drugs are safe and effective for the American public through a rigorous scientific and regulatory process, the FDA's Gary J. Buehler, RPh, says in an FDA news release.