The percentage of alcohol that is not metabolized in the liver and excreted unchanged is between 2 and 10%.There is a slight range due to body size and amount of alcohol ingested.
Sumatriptan is primarily metabolized in the liver by enzymes into its primary metabolite, known as IN-1237. The metabolites are then eliminated predominantly through the urine as inactive compounds. Only a small percentage of the unchanged drug is excreted in the urine.
Methamphetamine is metabolized into other chemicals, and then excreted from the body in the urine.
Ibuprofen is metabolized by the Kidneys and is thus excreted in the Urine. Actually, "...NSAIDs are metabolized by the liver via oxidative and conjugative pathways and have the potential to cause liver injury, with some agents being more hepatotoxic than others" Source: http://www.uic.edu/pharmacy/services/di/liver.htm
Most drugs are either excreted in the urine (via the kidneys) - particularly if they are very water soluble - or sometimes metabolized - mostly in the liver.
Variable such as serum, body pH, ionic content, O2 level are not tested. Also you can not tell how the drug is metabolized and excreted or the side effects of the drug.
Most are, the vast majority of drugs being broken down by the liver. Some (e.g. lithium carbonate) however are simply excreted without modification though the kidneys.
Pharmacokinetic is the study about the effects of body on the drug i.e how drug absorbed, metabolized, distributed and excreted. while pharmacodynamic deals with the effect of drug on the body
Methadone is metabolized in the liver through various pathways, primarily via cytochrome P450 enzymes. It undergoes N-demethylation to produce an active metabolite, 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP), which is further metabolized to inactive compounds. The metabolites are then excreted mainly through the kidneys.
Fat is primarily excreted from the body through a process called lipolysis, where fat molecules are broken down into fatty acids and glycerol. These byproducts are then released into the bloodstream and transported to tissues where they are metabolized for energy or stored. Excess fat can also be eliminated through the lungs as carbon dioxide or excreted in feces.
Variable such as serum, body pH, ionic content, O2 level are not tested. Also you can not tell how the drug is metabolized and excreted or the side effects of the drug.
Hormones are mainly broken down and metabolized by the liver and kidneys. After their function is performed, hormones are typically excreted from the body in urine or feces.