U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Showing 31 - 40 of 1927 results

Manganese Bromide is a highly water soluble crystalline salt composed of manganese and bromine with the formula MnBr2. Manganese Bromide can be used in place of palladium in the Stille reaction, which couples two carbon atoms using an organotin compound
Status:
First marketed in 1921
Source:
Ammonia Water U.S.P.
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



The ammonium cation is a positively charged polyatomic ion with the chemical formula NH4+. Ammonium ions are a waste product of the metabolism of animals. In fish and aquatic invertebrates, it is excreted directly into the water. In mammals, sharks, and amphibians, it is converted in the urea cycle to urea, because urea is less toxic and can be stored more efficiently. In birds, reptiles, and terrestrial snails, metabolic ammonium is converted into uric acid, which is solid and can therefore be excreted with minimal water loss. Ammonium is an important source of nitrogen for many plant species, especially those growing on hypoxic soils. However, it is also toxic to most crop species and is rarely applied as a sole nitrogen source. The ammonium ion (NH4+) in the body plays an important role in the maintenance of acid-base balance. The kidney uses ammonium (NH4+) in place of sodium (Na+) to combine with fixed anions in maintaining acid-base balance, especially as a homeostatic compensatory mechanism in metabolic acidosis. When a loss of hydrogen ions (H+) occurs and serum chloride (Cl–) decreases, sodium is made available for combination with bicarbonate (HCO3–). This creates an excess of sodium bicarbonate (NaHCO3) which leads to a rise in blood pH and a state of metabolic alkalosis. The therapeutic effects of Ammonium (as Ammonium Chloride) depend upon the ability of the kidney to utilize ammonia in the excretion of an excess of fixed anions and the conversion of ammonia to urea by the liver, thereby liberating hydrogen (H+) and chloride (Cl–) ions into the extracellular fluid.
Status:
First marketed in 1827

Class (Stereo):
CHEMICAL (ABSOLUTE)


Conditions:

Morphine is one of the most important and widely used opioid for the treatment of chronic and acute pain: the very wide interindividual variability in the patients’ response to the drug may have genetic derivations. Sulphate salt of morphine sold under the many brand names, one of them, DURAMORPH, which is indicated for the management of pain severe enough to require use of an opioid analgesic by intravenous administration, and for which alternative treatments are not expected to be adequate. In addition for the epidural or intrathecal management of pain without attendant loss of motor, sensory, or sympathetic function. Morphine is a full opioid agonist and is relatively selective for the mu-opioid receptor, although it can bind to other opioid receptors at higher doses. The principal therapeutic action of morphine is analgesia. Like all full opioid agonists, there is no ceiling effect for analgesia with morphine. The precise mechanism of the analgesic action is unknown. However, specific CNS opioid receptors for endogenous compounds with opioid-like activity have been identified throughout the brain and spinal cord and are thought to play a role in the analgesic effects of this drug. Morphine has a high potential for addiction and abuse. Common side effects include drowsiness, vomiting, and constipation. Caution is advised when used during pregnancy or breast-feeding, as morphine will affect the baby.
Status:
US Approved OTC
Source:
21 CFR 341.16(g) cough/cold:bronchodilator racepinephrine hydrochloride
Source URL:

Class (Stereo):
CHEMICAL (RACEMIC)



Racepinephrine or racemic epinephrine is a mixture of levo and dextro isomers of epinephrine act as a nonselective agonist at adrenergic receptors. It is a bronchodilator used in the temporary relief of mild symptoms of intermittent asthma including wheezing, shortness of breath. Inhaled racepinephrine became available in September 2012 as a nonprescription treatment for bronchospasm based on a 1986 US Food and Drug Administration rule. Besides, racemic epinephrine relieves respiratory distress in hospitalized infants with bronchiolitis and is safe but does not abbreviate hospital stay. Morbidity associated with bronchiolitis as identified by parents persists for at least one week after hospital discharge in most infants.
Status:
US Approved OTC
Source:
21 CFR 350.10(o) antiperspirant aluminum zirconium tetrachlorohydrate
Source URL:
First approved in 1963
Source:
Speed Stick by Mennen
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)

Zirconium Fluoride is a water insoluble Zirconium source for use in oxygen-sensitive applications, such as metal production. Zirconium fluoride in a mixture with other fluorides is a coolant for molten salt reactors. In the mixture with sodium fluoride it is a candidate coolant for the Advanced High-Temperature Reactor.
Status:
US Approved OTC
Source:
21 CFR 341.12(k) cough/cold:antihistamine pyrilamine maleate
Source URL:
First approved in 1948
Source:
Neo-Antergan by Merck
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



Pyrilamine (also known as Mepyramine) is a first generation antihistamine, targeting the H1 receptor. However, it rapidly permeates the brain and so often causes drowsiness as a side effect. It is used in over-the-counter combination products for colds and menstrual symptoms. Mepyramine is a histamine H1 receptor inverse agonist. It binds to a G protein-coupled form of the receptor and promotes a G protein-coupled inactive state of the H1 receptor that interferes with the Gq/11-mediated signaling. Mepyramine competes with histamine for binding at H1-receptor sites on the effector cell surface, resulting in suppression of histaminic edema, flare, and pruritus. The sedative properties of Mepyramine occur at the subcortical level of the CNS. It has mild hypnotic properties and some local anesthetic action and is used for allergies (including skin eruptions) both parenterally and locally. It is a common ingredient of cold remedies.
Status:
US Approved OTC
Source:
21 CFR 331.11(g)(4) antacid:magnesium-containing magnesium carbonate
Source URL:
First marketed in 1921
Source:
Magnesium Carbonate U.S.P.
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)

Status:
US Animal Drug
Source:
GREEN BOOK:EPINEPHRINE ACETATE [GREEN BOOK]
Source URL:

Class (Stereo):
CHEMICAL (ABSOLUTE)