? IUPAC nomenclature is a systematic way of naming organic chemical compounds. ... CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences and alloys. ... The Anatomical Therapeutic Chemical Classification System is used for the classification of drugs. ... A section of the Anatomical Therapeutic Chemical Classification System. ... PubChem is a database of chemical molecules . ... A chemical formula (also called molecular formula) is a concise way of expressing information about the atoms that constitute a particular chemical compound. ... The molecular mass of a substance (less accurately called molecular weight and abbreviated as MW) is the mass of one molecule of that substance, relative to the unified atomic mass unit u (equal to 1/12 the mass of one atom of carbon-12). ... In pharmacology, bioavailability is used to describe the fraction of an administered dose of medication that reaches the systemic circulation, one of the principal pharmacokinetic properties of drugs. ... Santorio Santorio (1561-1636) in his steelyard balance, from Ars de statica medecina, first published 1614 Metabolism (from μεταβολισμος (metabolismos)) is the biochemical modification of chemical compounds in living organisms anggjgjhnd cell (b). ... The elimination half-life of a drug (or any xenobiotic agent) refers to the timecourse necessary for the quantity of the xenobiotic agent in the body (or plasma concentration) to be reduced to half of its original level through various elimination processes. ... Excretion is the biological process by which an organism chemically separates waste products from its body. ... The pregnancy category of a pharmaceutical agent is an assessment of the risk of fetal injury due to the pharmaceutical, if it is used as directed by the mother. ...

Opioids: Buprenorphine, Butorphanol, Dextropropoxyphene, Dihydrocodeine, Fentanyl, Diamorphine (Heroin), Hydromorphone , Morphine, Nalbuphine, Oxycodone, Oxymorphone, Pentazocine, Pethidine (Meperidine), Tramadol An analgesic (colloquially known as a painkiller) is any member of the diverse group of drugs used to relieve pain and to achieve analgesia. ... A section of the Anatomical Therapeutic Chemical Classification System. ... A section of the Anatomical Therapeutic Chemical Classification System. ... An opioid is any agent that binds to opioid receptors found principally in the central nervous system and gastrointestinal tract. ... Buprenorphine, also colloquially referred to as bupe, is an opioid drug with partial agonist and antagonist actions. ... Butorphanol (INN) is a morphinan-type synthetic opioid analgesic marketed in the US under the trade name Stadol. ... Dextropropoxyphene is an analgesic in the opioid category. ... Dihydrocodeine, also called DHC or DF-118, is a synthetic opioid analgesic prescribed for postoperative pain, severe dyspnea, or as an antitussive. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... For other uses, see Heroin (disambiguation). ... // Overview Hydromorphone is a drug used to relieve moderate to severe pain. ... Morphine (INN) (IPA: ) is a powerful opioid analgesic drug and is the principal active agent in opium. ... Nalbuphine (nalbuphine hydrochloride) is a synthetic opioid used commercially as an analgesic under a variety of trade names, including Nubain. ... OxyContin should not be confused with Oxytocin. ... Oxymorphone (Numorphan) is a powerful semi-synthetic narcotic analgesic that is derived from morphine, and is approximately 6-8 times more potent. ... Pentazocine is a synthetically-prepared narcotic drug used to treat mild to moderate pain. ... Pethidine (INN) or meperidine (USAN) (also referred to as: isonipecaine; lidol; operidine; pethanol; piridosal; Algil®; Alodan®; Centralgin®; Demerol®; Dispadol®; Dolantin®; Dolestine®; Dolosal®; Dolsin®; Mefedina®) is a fast-acting opioid analgesic drug. ... Tramadol (INN) (IPA: ) is an atypical opioid which is a centrally acting analgesic, used for treating moderate to severe pain. ...

Salicylic acid and derivatives: Acetylsalicylic Acid (Aspirin), Diflunisal, Ethenzamide — Pyrazolones: Aminophenazone, Metamizole, Phenazone Salicylic acid is a colorless, crystalline organic carboxylic acid. ... A very old bottle of Aspirin Aspirin or acetylsalicylic acid is a drug in the family of salicylates, often used as an analgesic (against minor pains and aches), antipyretic (against fever), and anti-inflammatory. ... Aspirin or acetylsalicylic acid (acetosal) is a drug in the family of salicylates, often used as an analgesic (against minor pains and aches), antipyretic (against fever), and anti-inflammatory. ... Diflunisal is a generic NSAID (Non Steroidal Anti Inflammatory Drug). ... Pyrazole Phenazone Ampyrone Phenylbutazone Pyrazolone, a five-membered-ring lactam, is a derivative of pyrazole that has an additional keto (=O) group. ... Ampyrone is a metabolite of aminopyrine with analgesic, anti-inflammatory, and antipyretic properties. ... Metamizole sodium ( [(2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl) methylamino] methanesulfonate ) is a non-steroidal anti-inflammatory drug ( NSAID ), commonly used in the past as a powerful painkiller and fever reducer. ... Phenazone is an analgesics. ...

Anilides: Paracetamol (acetaminophen), Phenacetin — Others: Ziconotide, Tetrahydrocannabinol Aniline, phenylamine or aminobenzene is an organic compound with the formula C6H5NH2 (or C6H7N). ... Paracetamol (INN) (IPA: ) or acetaminophen (USAN) is a common analgesic and antipyretic drug that is used for the relief of fever, headaches, and other minor aches and pains. ... Phenacetin, introduced in 1887, is used principly as an analgesic. ... Ziconotide is a non-opioid, non local anesthetic used for the amelioration of chronic pain. ... Tetrahydrocannabinol, also known as THC, Δ9-THC, Δ9-tetrahydrocannabinol (delta-9-tetrahydrocannabinol), Δ¹-tetrahydrocannabinol (using an older numbering scheme), or dronabinol, is the main psychoactive substance found in the Cannabis plant. ...