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Total 393357 Results
| Label | Description | ILX | Version | Created CID | Modified Time | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dinoprost Tromethamine | The tromethamine (THAM) salt of the naturally occurring prostaglandin F2 alpha, dinoprost tromethamine occurs as a white to off-white, very hygroscopic, crystalline powder. Dinoprost tromethamine may also be known as dinoprost trometamol, PGF2 alpha THAM, or prostaglandin F2 alpha tromethamine. Pharmacology: Dinoprost tromethamine is the tromethamine (THAM) salt of the naturally occurring prostaglandin F2alpha. Prostaglandin F2alphahas several pharmacologic effects on the female reproductive system, including stimulation of myometrial activity, relaxation of the cervix, inhibition of steroidogenesis by corpora lutea, and can potentially lyse corpora lutea. Mechanism of action: Dinoprost tromethamine appears to act directly on the myometrium, but this has not been completely established. Dinoprost stimulates myometrial contractions in the gravid uterus that are similar to the contractions that occur in the term uterus during labor. These contractions are usually sufficient to cause abortion. Uterine response to prostaglandins increases gradually throughout pregnancy. Dinoprost also facilitates cervical dilatation and softening. Drug type: Approved. Small Molecule. Drug category: Abortifacient Agents, Nonsteroidal. Diagnostic aid (angiography). Oxytocics. Uterine stimulants | ILX:0103280 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Dinoprostone | Dinoprostone is a naturally occurring prostaglandin E2 (PGE2). It has important effects in labour. It also stimulates osteoblasts to release factors which stimualtes bone resorption by osteoclasts. As a prescription drug it is used as a vaginal suppository, to prepare the cervix for labour and to induce labour. Pharmacology: Dinoprostone is equivalent to prostaglandin E2 (PGE2). It stimulates labor and delivery and thus terminates pregnancy. Dinoprostone is also capable of stimulating the smooth muscle of the gastrointestinal tract of man. This activity may be responsible for the vomiting and/or diarrhea that is not uncommon when dinoprostone is used to terminate pregnancy. Mechanism of action: Dinoprostone administered intravaginally stimulates the myometrium of the gravid uterus to contract in a manner that is similar to the contractions seen in the term uterus during labor, resulting in the evacuation of the products of conception from the uterus. Drug type: Approved. Small Molecule. Drug category: Oxytocics. Prostaglandins | ILX:0103281 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Dinosauria | ILX:0103282 | 4 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex | |
| DiO | Fluorescent carbocyanine dye that is highly lipophilic, used for tract tracing studies in fixed tissues | ILX:0103283 | 4 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Diphemanil Methylsulfate | Diphemanil Methylsulfate is a quaternary ammonium anticholinergic. It binds muscarinic acetycholine receptors and thereby decreases secretory excretion of stomach acids as well as saliva and sweat. Pharmacology: Diphemanil Methylsulfate is a quaternary ammonium anticholinergic. It binds muscarinic acetycholine receptors and thereby decreases secretory excretion of stomach acids as well as saliva and sweat. Mechanism of action: Diphemanil Methylsulfate exerts its action by primarily binding the muscarinic M3 receptor. M3 receptors are located in the smooth muscles of the blood vessels, as well as in the lungs. This means they cause vasodilation and bronchoconstriction. They are also in the smooth muscles of the gastrointestinal tract (GIT), which help in increasing intestinal motility and dilating sphincters. The M3 receptors are also located in many glands which help to stimulate secretion in salivary glands and other glands of the body. Drug type: Approved. Small Molecule. Drug category: Bronchodilator Agents. Muscarinic Antagonists. Parasympatholytics | ILX:0103284 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Diphenhydramine | A histamine H1 antagonist used as an antiemetic, antitussive, for dermatoses and pruritus, for hypersensitivity reactions, as a hypnotic, an antiparkinson, and as an ingredient in common cold preparations. It has some undesired antimuscarinic and sedative effects. Pharmacology: Diphenhydramine is an antihistamine of the ethanolamine class. Ethanolamine antihistamines have significant antimuscarinic activity and produce marked sedation in most patients. In addition to the usual allergic symptoms, the drug also treats irritant cough and nausea, vomiting, and vertigo associated with motion sickness. It also is used commonly to treat drug-induced extrapyramidal symptoms as well as to treat mild cases of Parkinson's disease. Rather than preventing the release of histamine, as do cromolyn and nedocromil, diphenhydramine competes with free histamine for binding at HA-receptor sites. Diphenhydramine competitively antagonizes the effects of histamine on HA-receptors in the GI tract, uterus, large blood vessels, and bronchial muscle. Ethanolamine derivatives have greater anticholinergic activity than do other antihistamines, which probably accounts for the antidyskinetic action of diphenhydramine. This anticholinergic action appears to be due to a central antimuscarinic effect, which also may be responsible for its antiemetic effects, although the exact mechanism is unknown. Mechanism of action: Diphenhydramine competes with free histamine for binding at HA-receptor sites. This antagonizes the effects of histamine on HA-receptors, leading to a reduction of the negative symptoms brought on by histamine HA-receptor binding. Drug type: Approved. Small Molecule. Drug category: Anesthetics. Anesthetics, Local. Anti-Allergic Agents. Antidyskinetics. Antiemetics. Antiparkinson Agents. Antipruritics. Antitussives. Ethanolamine Derivatives. Histamine H1 Antagonists. Hypnotics and Sedatives | ILX:0103285 | 4 | scicrunch | 08/24/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | troy sincomb |
| Diphenidol | Diphenidol is an antiemetic agent used in the treatment of vomiting and vertigo. Diphenidol overdose may result in serious toxicity in children. Pharmacology: Diphenidol is used for control of nausea and vomiting. It has an antivertigo effect on the vestibular apparatus, inhibiting the chemoreceptor trigger zone to control nausea and vomiting, thus preventing motion sickness. Mechanism of action: The mechanism by which diphenidol exerts its antiemetic and antivertigo effects is not precisely known. It is thought to diminish vestibular stimulation and depress labyrinthine function. An action on the medullary chemoreceptive trigger zone may also be involved in the antiemetic effect. Diphenidol has no significant sedative, tranquilizing, or antihistaminic action. It has a weak peripheral anticholinergic effect. Drug type: Approved. Small Molecule. Drug category: Antiemetics. Antivertigo Agents | ILX:0103286 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Diphenoxylate | A meperidine congener used as an antidiarrheal, usually in combination with atropine. At high doses, it acts like morphine. Its unesterified metabolite difenoxin has similar properties and is used similarly. It has little or no analgesic activity. This medication is classified as a Schedule V under the Controlled Substances Act by the Food and Drug Administration (FDA) and the DEA in the United States when used in preparations. When diphenoxylate is used alone, it is classified as a Schedule II. Pharmacology: Diphenoxylate, an antidiarrheal, is effective as adjunctive therapy in the management of diarrhea. Diphenoxylate is rapidly and extensively metabolized in man by ester hydrolysis to diphenoxylic acid (difenoxine), which is biologically active and the major metabolite in the blood. Mechanism of action: Diphenoxylate is an opiate receptor agonists that stimulate mu receptors in GI to decrease the peristalsis and constrict the sphincters. Diphenoxylate has a direct effect on circular smooth muscle of the bowel, that conceivably results in segmentation and prolongation of gastrointestinal transit time. The clinical antidiarrheal action of diphenoxylate may thus be a consequence of enhanced segmentation that allows increased contact of the intraluminal contents with the intestinal mucosa. Drug type: Approved. Illicit. Small Molecule. Drug category: Analgesics, Opioid. Antidiarrheals. Antiperistaltic. Narcotics | ILX:0103287 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Diphenylpyraline | Diphenylpyraline is an antihistamine. Antihistamines used in the treatment of allergy act by competing with histamine for H 1-receptor sites on effector cells. Antihistamines prevent, but do not reverse, responses mediated by histamine alone. Antihistamines antagonize, in varying degrees, most of the pharmacological effects of histamine, including urticaria and pruritus. Pharmacology: Diphenylpyraline is an antihistamine that prevents, but does not reverse, responses mediated by histamine alone. Diphenylpyraline antagonizes most of the pharmacological effects of histamine, including urticaria and pruritus. Also, diphenylpyraline may exhibit anticholinergic actions (as do most of the antihistamines) and may thus provide a drying effect on the nasal mucosa. Mechanism of action: Antihistamines such as diphenylpyraline used in the treatment of allergy act by competing with histamine for H1-receptor sites on effector cells. This reduces the effects of histamine, leading to a temporary reduction of allergy symptoms. Drug type: Approved. Small Molecule. Drug category: Antihistamines | ILX:0103288 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Dipivefrin | Dipivefrin is a prodrug of adrenaline, which is used to treat glaucoma. It is available as ophthalmic solution (eye drops). Pharmacology: Dipivefrin is a member of a class of drugs known as prodrugs. Prodrugs are usually not active in themselves and require biotransformation to the parent compound before therapeutic activity is seen. These modifications are undertaken to enhance absorption, decrease side effects and enhance stability and comfort, thus making the parent compound a more useful drug. Enhanced absorption makes the prodrug a more efficient delivery system for the parent drug because less drug will be needed to produce the desired therapeutic response. Dipivefrin is a prodrug of epinephrine formed by the diesterification of epinephrine and pivalic acid. The addition of pivaloyl groups to the epinephrine molecule enhances its lipophilic character and, as a consequence, its penetration into the anterior chamber. Mechanism of action: Dipivefrin is converted to epinephrine inside the human eye by enzyme hydrolysis. The liberated epinephrine, an adrenergic agonist, appears to exert its action by decreasing aqueous production and by enhancing outflow facility. The dipivefrin prodrug delivery system is a more efficient way of delivering the therapeutic effects of epinephrine, with fewer side effects than are associated with conventional epinephrine therapy. Drug type: Approved. Small Molecule. Drug category: Adrenergic Agonists. Ophthalmologicals. Sympathomimetics | ILX:0103289 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Diploid | A ploidy quality inhering in a bearer by virtue of having two copies (homologs) of each chromosome, usually one from the mother and one form the father. | ILX:0103290 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Diptera | ILX:0103291 | 5 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex | |
| Dipyridamole | A phosphodiesterase inhibitor that blocks uptake and metabolism of adenosine by erythrocytes and vascular endothelial cells. Dipyridamole also potentiates the antiaggregating action of prostacyclin. (From AMA Drug Evaluations Annual, 1994, p752) Pharmacology: Dipyridamole, a non-nitrate coronary vasodilator that also inhibits platelet aggregation, is combined with other anticoagulant drugs, such as warfarin, to prevent thrombosis in patients with valvular or vascular disorders. Dipyridamole is also used in myocardial perfusion imaging, as an antiplatelet agent, and in combination with aspirin for stroke prophylaxis. Mechanism of action: Dipyridamole likely inhibits both adenosine deaminase and phosphodiesterase, preventing the degradation of cAMP, an inhibitor of platelet function. This elevation in cAMP blocks the release of arachidonic acid from membrane phospholipids and reduces thromboxane A2 activity. Dipyridamole also directly stimulates the release of prostacyclin, which induces adenylate cyclase activity, thereby raising the intraplatelet concentration of cAMP and further inhibiting platelet aggregation. Drug type: Approved. Small Molecule. Drug category: Phosphodiesterase Inhibitors. Platelet Aggregation Inhibitors. Vasodilator Agents | ILX:0103292 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Direct flight muscle motor neuron | . | ILX:0103293 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Directed forgetting task | No definition submitted yet. | ILX:0103294 | 4 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Direction | The orientation of a line in space. | ILX:0103295 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Direction selectivity | ILX:0103296 | 5 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex | |
| Directive information entity | An information content entity whose concretizations indicate to their bearer how to realize them in a process. | ILX:0103297 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Dirithromycin | Dirithromycin is a macrolide glycopeptide antibiotic. It is used to treat many different types of bacterial infections, such as bronchitis, pneumonia, tonsillitis, and even skin infections. Pharmacology: Dirithromycin is a pro-drug which is converted non-enzymatically during intestinal absorption into the microbiologically active moiety erythromycylamine. Erythromycylamine exerts its activity by binding to the 50S ribosomal subunits of susceptible mircoorganisms resulting in inhibition of protein synthesis. Dirithromycin/erythromycylamine has been shown to be active against most strains of the following microorganisms both in vitro and in clinical infections: Staphylococcus aureus (methicillin-susceptible strains only), Streptococcus pneumoniae, Streptococcus pyogenes, Haemophilus influenzae, Legionella pneumophila, Moraxella catarrhalis, and Mycoplasma pneumoniae. Mechanism of action: Dirithromycin prevents bacteria from growing, by interfering with their protein synthesis. Dirithromycin binds to the 50S subunit of the 70S bacterial ribosome, and thus inhibits the translocation of peptides. Dirithromycin has over 10 times higher affinity to the subunit 50S than erythromycin. In addition, dirithromycin binds simultaneously in to two domains of 23S RNA of the ribosomal subunit 50S, where older macrolides bind only in one. Dirithromycin can also inhibit the formation of ribosomal subunits 50S and 30S. Drug type: Approved. Small Molecule. Drug category: Anti-Bacterial Agents. Anti-Infectives. Macrolides | ILX:0103298 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Disassembled | ILX:0103299 | 3 | scicrunch | 06/18/2018 | scicrunch | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
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