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Katherine Johnson’s mathematical calculations helped guide some of America’s most important early space missions while she confronted the racial and gender barriers faced by Black women in twentieth-century America.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
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| Other names | Morphine dinicotinate, 3,6-dinicotinoylmorphine |
| AHFS/Drugs.com | International Drug Names |
| Routes of administration | Oral, Intravenous, Rectal |
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| Identifiers | |
| CAS Number | |
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| CompTox Dashboard (EPA) | |
| ECHA InfoCard | 100.010.326 |
| Chemical and physical data | |
| Formula | C29H25N3O5 |
| Molar mass | 495.535 g·mol−1 |
| 3D model (JSmol) | |
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Nicomorphine (Vilan, Subellan, Gevilan, MorZet) is the 3,6-dinicotinate ester of morphine. It is a strong opioid agonist analgesic two to three times as potent as morphine with a side effect profile similar to that of dihydromorphine, morphine, and diamorphine.
Nicomorphine was first synthesized in 1904 and was patented as Vilan by Lannacher Heilmittel G.m.b.H. of Austria in 1957.
The hydrochloride salt is available as ampoules of 10 mg/ml solution for injection, 5 mg tablets, and 10 mg suppositories. It is possible that other manufacturers distribute 10 mg tablets and other concentrations of injectable nicomorphine in ampoules and multidose vials. It is used, particularly in the German-speaking countries and elsewhere in Central Europe and some other countries in Europe and the former USSR in particular, for post-operative, cancer, chronic non-malignant and other neuropathic pain.[medical citation needed] It is commonly used in patient-controlled analgesia (PCA) units. The usual starting dose is 5–10 mg given every 3–5 hours.
Nicomorphine's side effects are similar to those of other opioids and include itching, nausea and respiratory depression. It is considered by doctors to be one of the better analgesics for the comprehensive mitigation of suffering, as opposed to purely clouding the noxious pain stimulus, in the alleviation of chronic pain conditions.[2]
The method for synthesis of nicomorphine, which involves treating anhydrous morphine base with nicotinic anhydride at 130 °C, was published by Pongratz and Zirm in Monatshefte für Chemie in 1957,[3] simultaneously with the two analogues nicocodeine and nicodicodeine in an article about amides and esters of various organic acids.[3][4]
Nicomorphine is regulated in much the same fashion as morphine worldwide but is a Schedule I controlled substance in the United States and was never introduced there.
Nicomorphine may appear on rare occasions on the European black market and other channels for unsupervised opioid users. It can be produced as part of a mixture of salts and derivatives of morphine by end users by means of treating morphine with nicotinic anhydride or related chemicals in an analogue of the heroin homebake process.
CAS number of hydrochloride: 35055-78-8
US DEA ACSCN: 9312
Free base conversion ratios of salts:
Nicomorphine Hydrochloride: 0.93
The 3,6-diesters of morphine are drugs with more rapid and complete central nervous system penetration due to increased lipid solubility and other structural considerations. The prototype for this subgroup of semi-synthetic opiates is heroin and the group also includes dipropanoylmorphine, diacetyldihydromorphine, disalicylmorphine and others. Whilst this produces an enhanced "bang", i.e. a faster and more sudden onset of action when the drug is administered intravenously, it cannot be distinguished from morphine via other routes, although the different side effect profile, including lower incidence of nausea, is very apparent.
Nicomorphine is rapidly metabolized when administered by the I.V. route, having a half-life of 3 minutes, into morphine and 6-nicotinoylmorphine, the secondary active metabolite. Half lives of the metabolites were 3–15 minutes for the nicotinoyl metabolite, and 135–190 minutes for morphine.[5]
Via the epidural route, a much slower release from epidural space occurs and nicomorphine remains detectable for 1.5 hours or so, and has a longer effect of 18.2 +/- 10.1 hours due to slower release of the active metabolites, morphine and 6-nicotinoylmorphine. Half lives for those compounds is listed in the IV route.[6]
Pharmacokinetics via the rectal route differ, and change metabolism. Eight minutes after administration, morphine appeared rapidly, and had a half life of 1.48 +/- 0.48h. This was in turn metabolized to morphine-3- and morphine-6-glucoranides after another 12 minutes, which had similar half-lives to one-another, at about 2.8h. No 6-mononicotinoylmorphine was found, and bioavailability of morphine and metabolic actives was 88%. No remaining nicomorphine was found in urine.[7]
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
Nicomorphine (Vilan, Subellan, Gevilan, MorZet) is the 3,6-dinicotinate ester of morphine. It is a strong opioid agonist analgesic two to three times as potent as morphine with a side effect profile similar to that of dihydromorphine, morphine, and diamorphine. Nicomorphine was first synthesized in 1904 and was patented as Vilan by Lannacher Heilmittel G.m.b.H. of Austria in 1957.
Nicocodeine (Lyopect, Tusscodin) is an opioid analgesic and cough suppressant, an ester of codeine closely related to dihydrocodeine and the codeine analogue of nicomorphine. It is not commonly used in most countries, but has activity similar to other opiates. Nicocodeine and nicomorphine were synthesized in 1904, and introduced in 1957 by Lannacher Heilmittel of Austria. Nicocodeine is metabolised in the liver by demethylation to produce nicomorphine, also known as 6-nicotinoylmorphine, and subsequently further metabolised to morphine. Side effects are similar to those of other opiates and include itching, nausea and respiratory depression. Related opioid analogues such as nicomorphine and nicodicodeine were first synthesized. The definitive synthesis, which involves treating anhydrous codeine base with nicotinic anhydride at 130 °C, was published by Pongratz and Zirm in Monatshefte für Chemie in 1957, simultaneously with the two analogues in an article about amides and esters of various organic acids. Nicocodeine is almost always used as the hydrochloride salt, which has a free base conversion ratio of .917. In the past, the tartrate, bitartrate, phosphate, hydrobromide, methiodide, hydroiodide, and sulfate were used in research or as pharmaceuticals. Nicocodeine is regulated in most cases as is codeine and similar weak opiate drugs like ethylmorphine, benzylmorphine, dihydrocodeine and its other close derivatives like acetyldihydrocodeine (although not the stronger hydrocodone or oxycodone, which are regulated like morphine) and others of this class in the laws of countries and the Single Convention On Narcotic Drugs. One notable example is the fact that nicocodeine is a Schedule I/Narcotic controlled substance in the United States along with heroin as nicocodeine was never introduced for medical use in the United States. Nicodicodeine is a similar drug which is to nicocodeine as dihydrocodeine is to codeine. The metabolites of nicodicodeine include dihydromorphine where nicocodeine is turned into morphine as noted above. Nicocodeine cough medicines are available as syrups, extended-release syrups, and sublingual drops. Analgesic preparations are also in the form of sublingual drops and tablets for oral administration. Nicocodeine is approximately the same strength as hydrocodone; it has a faster onset of action. The 2013 DEA annual production quota for nicocodeine and its two related drugs are zero. Nicocodeine's ACSCN is 9309. Nicodicodeine is not assigned an ACSCN and is presumably controlled as either an ester of dihydromorphine or derivative of nicomorphine.
Dibutyrylmorphine (also known as dibutanoylmorphine) is the 3,6-dibutyryl ester of morphine, first synthesized by the CR Alders Wright organization in the United Kingdom in 1875. In animal studies its potency as an analgesic is higher compared to morphine, but lower than that of heroin. Its structure is similar to that of other morphine esters such as heroin and nicomorphine. In many countries it is controlled as an ester of a controlled substance. Esters of morphine were first produced by boiling morphine in acids or acid anhydrides including acetic, formic, propanoic, benzoic, butyric, and others, forming numerous mono-, di-, and tetraesters. Some of these were later researched further by others and some were eventually marketed. They included heroin, the first designer drugs which were produced in the late 1920s to replace heroin when it was outlawed by the League of Nations, medicinal drugs such as nicomorphine and others. Some of the corresponding esters of codeine, dihydrocodeine, dihydromorphine, isocodeine were also developed, such as the cough suppressant nicocodeine. The 3,6-diesters of morphine are drugs with more rapid and complete central nervous system penetration due to increased lipid solubility and other structural considerations.
Heroin, also known as diacetylmorphine and diamorphine among other names, is a morphinan opioid substance synthesized from the dried latex of the opium poppy; it is mainly used as a recreational drug for its euphoric effects. Heroin is used medically in several countries to relieve pain, such as during childbirth or a heart attack. Medical-grade diamorphine is used as a pure hydrochloride salt. Various white and brown powders sold illegally around the world as heroin are routinely diluted with cutting agents. Black tar heroin is a variable admixture of morphine derivatives—predominantly 6-MAM (6-monoacetylmorphine), which is the result of crude acetylation during clandestine production of street heroin. Heroin is typically injected, usually into a vein, but it can also be snorted, smoked, or inhaled. In a clinical context, the route of administration is most commonly intravenous injection; it may also be given by intramuscular or subcutaneous injection, as well as orally in the form of tablets. The onset of effects is usually rapid and lasts for a few hours. Common side effects include respiratory depression (decreased breathing), dry mouth, drowsiness, impaired mental function, constipation, and addiction. Use by injection can also result in abscesses, infected heart valves, blood-borne infections, and pneumonia. After a history of long-term use, opioid withdrawal symptoms can begin within hours of the last use. When given by injection into a vein, heroin has two to three times the effect of a similar dose of morphine. It typically appears in the form of a white or brown powder. Treatment of heroin addiction often includes behavioral therapy and medications. Medications can include buprenorphine, methadone, or naltrexone. A heroin overdose may be treated with naloxone. As of 2015, an estimated 17 million people use opiates non-medically, of which heroin is the most common, and opioid use resulted in an estimated 109 thousand to 129 thousand deaths in 2015. The total number of heroin users worldwide is believed to have increased in Africa, the Americas, and Asia between 2000 and 2015. In the United States, approximately 1.6 percent of people reported using heroin at some point in their lives and 0.4% of people aged 12 or older in 2021 reported using heroin in the past 12 months. When people die from overdosing on a drug, the drug is usually an opioid and often heroin. Heroin was first made by C. R. Alder Wright in 1874 from morphine, a natural product of the opium poppy. Internationally, heroin is controlled under Schedules I and IV of the Single Convention on Narcotic Drugs, and it is generally illegal to make, possess, or sell without a license. About 448 tons of heroin were made in 2016. In 2015, Afghanistan produced about 66% of the world's opium. Illegal heroin is often mixed with other substances such as sugar, starch, caffeine, quinine, or other opioids like fentanyl.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →The Greenwood District.
