http://linked.open...gbank/description
| - A potent narcotic analgesic, abuse of which leads to habituation or addiction. It is primarily a mu-opioid agonist. Fentanyl is also used as an adjunct to general anesthetics, and as an anesthetic for induction and maintenance. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1078) (en)
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http://linked.open...generalReferences
| - # Van Bever WF, Niemegeers CJ, Janssen PA: Synthetic analgesics. Synthesis and pharmacology of the diastereoisomers of N-(3-methyl-1-(2-phenylethyl)-4-piperidyl)-N-phenylpropanamide and N-(3-methyl-1-(1-methyl-2-phenylethyl)-4-piperidyl)-N-phenylpropanamide. J Med Chem. 1974 Oct;17(10):1047-51. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/4420811 # Messina J, Darwish M, Fine PG: Fentanyl buccal tablet. Drugs Today (Barc). 2008 Jan;44(1):41-54. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/18301803 # Taylor DR: Fentanyl buccal tablet: rapid relief from breakthrough pain. Expert Opin Pharmacother. 2007 Dec;8(17):3043-51. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/18001263 # Simpson DM, Messina J, Xie F, Hale M: Fentanyl buccal tablet for the relief of breakthrough pain in opioid-tolerant adult patients with chronic neuropathic pain: a multicenter, randomized, double-blind, placebo-controlled study. Clin Ther. 2007 Apr;29(4):588-601. "Pubmed":http://www.ncbi.nlm.nih.gov/pubmed/17617282 (en)
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http://linked.open...mechanismOfAction
| - Opiate receptors are coupled with G-protein receptors and function as both positive and negative regulators of synaptic transmission via G-proteins that activate effector proteins. Binding of the opiate stimulates the exchange of GTP for GDP on the G-protein complex. As the effector system is adenylate cyclase and cAMP located at the inner surface of the plasma membrane, opioids decrease intracellular cAMP by inhibiting adenylate cyclase. Subsequently, the release of nociceptive neurotransmitters such as substance P, GABA, dopamine, acetylcholine and noradrenaline is inhibited. Opioids also inhibit the release of vasopressin, somatostatin, insulin and glucagon. Fentanyl's analgesic activity is, most likely, due to its conversion to morphine. Opioids close N-type voltage-operated calcium channels (OP2-receptor agonist) and open calcium-dependent inwardly rectifying potassium channels (OP3 and OP1 receptor agonist). This results in hypopolarization and reduced neuronal excitability. (en)
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