Dextropropoxyphene is an analgesic in the opioid category, patented in 1955 and manufactured by Eli Lilly and Company. It is an optical isomer of levopropoxyphene. It is intended to treat mild pain and also has antitussive (cough suppressant) and local anaesthetic effects. The drug has been taken off the market in Europe and the US […]

Phencyclidine, alsoknown as angel dust and myriad other street names, is a recreational,dissociative drug formerly used as an anesthetic agent, exhibitinghallucinogenic and neurotoxic effects. Developed in Germany in 1926, it wasfirst patented in 1952 by the Parke-Davis pharmaceutical company and marketedunder the brand name Sernyl. In chemical structure, PCP is anarylcyclohexylamine derivative, and, in pharmacology, […]

Propranolol is a nonselective beta-adrenergic receptor blocker (beta-blocker) that is widely used for the therapy of hypertension, cardiac arrhythmias, angina pectoris and hyperthyroidism. Propranolol has yet to be convincingly associated with clinically apparent liver injury and is often used in patients with liver disease and cirrhosis.

Propranolol is a non-selective beta-adrenergic receptor blocking agent. It has no other autonomic nervous system activity. Propranolol is a competitive antagonist which specifically competes with beta-adrenergic receptor stimulating agents for available beta-receptor sites. When access to beta-adrenergic receptor sites is blocked by propranolol, the chronotropic, inotropic, and vasodilator responses to beta-adrenergic stimulation are decreased proportionately.

Propyphenazone is a pyrazolone derivative that is antipyrine substituted at C-4 by an isopropyl group. It has a role as a non-steroidal anti-inflammatory drug, a non-narcotic analgesic and a peripheral nervous system drug. It derives from an antipyrine.

Propyphenazone is a pyrazolone derivative that is antipyrine substituted at C-4 by an isopropyl group. It has a role as a non-steroidal anti-inflammatory drug, a non-narcotic analgesic and a peripheral nervous system drug. It derives from an antipyrine.

Propyphenazone is a pyrazolone derivative that is antipyrine substituted at C-4 by an isopropyl group. It has a role as a non-steroidal anti-inflammatory drug, a non-narcotic analgesic and a peripheral nervous system drug. It derives from an antipyrine.

Propyphenazone is a pyrazolone derivative that is antipyrine substituted at C-4 by an isopropyl group. It has a role as a non-steroidal anti-inflammatory drug, a non-narcotic analgesic and a peripheral nervous system drug. It derives from an antipyrine.

The prostaglandins (PG) are a group of physiologically active lipid compounds having diverse hormone-like effects in animals. Prostaglandins have been found in almost every tissue in humans and other animals. They are derived enzymatically from fatty acids. Every prostaglandin contains 20 carbon atoms, including a 5-carbon ring. They are a subclass of eicosanoids and of […]

The prostaglandins (PG) are a group of physiologically active lipid compounds having diverse hormone-like effects in animals. Prostaglandins have been found in almost every tissue in humans and other animals. They are derived enzymatically from fatty acids. Every prostaglandin contains 20 carbon atoms, including a 5-carbon ring. They are a subclass of eicosanoids and of […]

The prostaglandins (PG) are a group of physiologically active lipid compounds having diverse hormone-like effects in animals. Prostaglandins have been found in almost every tissue in humans and other animals. They are derived enzymatically from fatty acids. Every prostaglandin contains 20 carbon atoms, including a 5-carbon ring. They are a subclass of eicosanoids and of […]

Protein L was first isolated from the surface of bacterial species Peptostreptococcus magnus and was found to bind immunoglobulins through L chain interaction, from which the name was suggested. It consists of 719 amino acid residues. The molecular weight of Protein L purified from the cell walls of Peptostreptoccus magnus was first estimated as 95kD […]

Double-stranded (DS) DNA is the major form of genetic material in most organisms. One major difference between prokaryotic and eukaryotic chromosomes is that each of the former contains single replication origin (ori), whereas the latter usually have multiple ori dispersed throughout the chromosomes. Having multiple ori facilitates the replication of a large amount of DNA […]

Puromycin is an antibiotic protein synthesis inhibitor which causes premature chain termination during translation.

Pyraclostrobin is a carbamate ester that is the methyl ester of [2-({[1-(4-chlorophenyl)-1H-pyrazol-3-yl]oxy}methyl)phenyl]methoxycarbamic acid. A fungicide used to control major plant pathogens including Septoria tritici, Puccinia spp. and Pyrenophora teres. It has a role as a mitochondrial cytochrome-bc1 complex inhibitor, a xenobiotic, an environmental contaminant and an antifungal agrochemical.

Pyraclostrobin is a carbamate ester that is the methyl ester of [2-({[1-(4-chlorophenyl)-1H-pyrazol-3-yl]oxy}methyl)phenyl]methoxycarbamic acid. A fungicide used to control major plant pathogens including Septoria tritici, Puccinia spp. and Pyrenophora teres. It has a role as a mitochondrial cytochrome-bc1 complex inhibitor, a xenobiotic, an environmental contaminant and an antifungal agrochemical.

Pyrethroids are axonic excitoxins, the toxic effects of which are mediated through preventing the closure of the voltage-gated sodium channels in the axonal membranes. The sodium channel is a membrane protein with a hydrophilic interior.

Pyridaben is a pyridazinone, an organochlorine insecticide and an organochlorine acaricide. It has a role as a mitochondrial NADH:ubiquinone reductase inhibitor.

Pyridaben is a pyridazinone, an organochlorine insecticide and an organochlorine acaricide. It has a role as a mitochondrial NADH:ubiquinone reductase inhibitor.

Pyridoxal is one of the three natural forms of vitamin B6, along with pyridoxamine and pyridoxine (also called “pyridoxol”). All of these forms are converted in the human body into a single biologically active form, pyridoxal 5-phosphate. All three forms of vitamin B6 are heterocyclic organic compounds. Green plants are a natural source of pyridoxal, […]

Pyridoxamine is a monohydroxypyridine that is pyridine substituted by a hydroxy group at position 3, an aminomethyl group at position 4, a hydroxymethyl group at position 5 and a methyl group at position 2. The 4-aminomethyl form of vitamin B6, it is used (in the form of the hydrochloride salt) for treatment of diabetic nephropathy. […]

Pyridoxamine is a monohydroxypyridine that is pyridine substituted by a hydroxy group at position 3, an aminomethyl group at position 4, a hydroxymethyl group at position 5 and a methyl group at position 2. The 4-aminomethyl form of vitamin B6, it is used (in the form of the hydrochloride salt) for treatment of diabetic nephropathy. […]

Vitamin B6 is a water-soluble vitamin that exists in three major chemical forms: pyridoxine, pyridoxal and pyridoxamine. Vitamin B6 is needed for more than 100 enzymes involved in protein metabolism. It is also essential for red blood cell metabolism. The nervous and immune systems need Vitamin B6 to function efficiently and it is also needed […]

Quetiapine is a medicine that helps with mental health conditions such as: schizophrenia, where you may see, hear or feel things that are not there or you believe things that are not true, or you feel unusually suspicious or have muddled thoughts.

Quinolinic acid is a naturally occurring toxin in the central nervous system believed to play a role in AIDS dementia complex. A metabolite of tryptophan with a possible role in neurodegenerative disorders. Elevated csf levels of quinolinic acid are significantly correlated with the severity of neuropsychological deficits in patients who have aids.

Quinidine is a pharmaceutical agent that acts as a class I antiarrhythmic agent (Ia) in the heart. It is a stereoisomer of quinine, originally derived from the bark of the cinchona tree. The drug causes increased action potential duration, as well as a prolonged QT interval.

Quinoline yellow is a quinoline derivative with a 1,3-dioxoindan-2-yl substituent at C-2. It has a role as a dye. It is a member of quinolines, a beta-diketone and an aromatic ketone.

Quinoline yellow is a quinoline derivative with a 1,3-dioxoindan-2-yl substituent at C-2. It has a role as a dye. It is a member of quinolines, a beta-diketone and an aromatic ketone.

Quinolinic acid is a naturally occurring toxin in the central nervous system believed to play a role in AIDS dementia complex. A metabolite of tryptophan with a possible role in neurodegenerative disorders. Elevated csf levels of quinolinic acid are significantly correlated with the severity of neuropsychological deficits in patients who have aids.

Pentachloronitrobenzene is a C-nitro compound that is nitrobenzene in which every hydrogen has been replaced by a chlorine. A fungicide used on a variety of crops, including cotton, rice and seed grains, it is no longer approved for use within the European Union. It has a role as an antifungal agrochemical. It is a C-nitro […]