Toxic Acute

Toxicity. Acute toxicity data for neopentyl glycol (1) are reported in Table 2. 

Toxicity. Acute toxicity data are reported ia Table 2 (11). 

Eastman Chemical Co., BASF, Mitsubishi Gas, and Union Carbide are manufacturers of this glycol. The U.S. price in June 1993 was 2.97/kg. Toxicity. Acute toxicity data for (9) appear in Table 2. 

Sesamex [51-14-9] (Sesoxane) (30) is a synergist oflow toxicity, acute oral LD q (rat) = 2000 2270 mg/kg, for pyrethrins and allethrin. 6,7-Dihydroxy 4-methylcoumarin has been offered as an antioxidant for phenoHcs and polymers, and as an anthelmintic. 2,4,5-Trihydroxybutyrophenone has been available as an antioxidant and light stabilizer for polyolefins, waxes, and foods. Isoflavones, eg (31), have been patented as components of antioxidant compositions for foods and cosmetics (qv) (97). 

Japan. In Japan, registration of dmgs for aquatic species requires the same data as those required for dmgs on other animals. The Ministry of Agriculture, Eorests, and Eisheries and the Ministry of Welfare control the use of chemicals in aquaculture in Japan (17). The preclinical data requirements include product chemistry, toxicity (acute, subacute, special) using rats and mice, safety to target animals, and metaboHsm. The requirements for clinical data include avadabiHty and residues. As of July 1990, more chemicals were registered for aquacultural use in Japan than in any other country (Table 4). 

A toxic reaction may take place during or soon after exposure, or it may only appear after a latency period. Chronic toxicity requires exposure of several years for a toxic effect to occur in humans. With respect to experimental animals, the animals are usually exposed for most or all of their life time to ascertain the occurrence of chronic toxicity. Acute toxic reactions that occur immediately are easy to associate with the exposure and the exposure-effect relationship can readily be demonstrated. The longer the time interval between exposure and effect, the more difficult it is to delineate the relationship between exposure and effect. 

Ascher and Nemny 495) found that residues of triphenyltin acetate on glass, resulting from the evaporation of acetone solutions thereof, were, on contact to houseflies, less toxic with rising concentration. As triphenyltin acetate is likely to be a self-associated polymer in the solid state [similar to trimethyltin acetate (355)] and in concentrated solutions, it was suggested 495) that the monomer, which exists in dilute solutions, is toxic to insects, and the polymer, nontoxic. Interestingly, in this connection, a triphenyltin methacrylate copolymer has 470) a very low mammalian toxicity (acute, oral LDso for mice >2000 mg/kg). 

REDUCED Additional acute toxicity Acute daphnia toxicity Biodegradability Physico-chemical properties 100 kg/annum or 500 kg cumulative... 

Human toxicity Acute effects Carcinogenicity Genotoxicity/mutagenicity Developmental Teratogenicity/mutagenicity Neurotoxicity Endocrine disruption... 

Myelosuppression (dose-related) mucositis (worse with continuous infusion) moderate emetogenic potential alopecia vesicant severe extravasation injury cardiac toxicities acute—not related to cumulative dose arrhythmias, pericarditis chronic— cumulative injury to myocardium (total dose greater than 550 mg/m2 lower total cumulative doses cause damage to myocardium in children (e.g., 350 mg/m2)... 

In vitro chromosome aberration test In vitro gene mutation assay Acute oral toxicity Acute inhalation or dermal toxicity... 

New compounds continue to appear in the literature and some are reported to show advantages over hydralazine in animal studies. For example, L-6150 (XVI) is said to be less toxic acutely (6). ISF-2123 (XVII) is more potent in rats and dogs (7.). 

Edmiston, C.E., Jr., Goheen, M., Malaney, G.W., and Mills, W.E. Evaluation of carbamate toxicity acute toxicity in a culture of Paramecium multlmlcronucleatum upon exposure to aldicarb, carbaryl, and mexacarbate as measured by a Warburg respirometry and acute plate assay. Environ. Res., 36(2) 338-350, 1985. 

A toxicity test may measure either acute or chronic toxicity. Acute toxicity is indicative for acute effects possibly occurring in the immediate vicinity of the discharge. An acute toxicity test... 

Acute Oral Toxicity - Acute Toxic Class Method (Updated Guideline, adopted 20 December 2001)... 

Acute oral toxicity - Acute toxic class method 2001... 

Renal toxicity Acute renal failure has been observed in severely ill patients undergoing treatment with voriconazole. 

Mercury was used to cure the felt used in hats, and workers developed the characteristic signs of mercury vapor toxicity. Acute exposure to high concentrations of mercury vapor causes respiratory distress, which can be fatal. The symptoms of chronic exposure to mercury vapor include personality changes such as excitability, depression, memory loss, fine motor tremor that can become progressively worse, gingivitis, and hallucination. There is some mercury inhalation exposure from dental amalgam, but for most people there are no health-related effects. Metallic mercury is very poorly absorbed from the intestine, thus it is much better to swallow the mercury from a thermometer than inhale it (see chapter on mercury). 

Lead is an acute and a chronic toxicant. Acute effects are ataxia, headache, vomiting, stupor, hallucination, tremors and convulsions. Chronic symptoms from occupational exposure include weight loss, anemia, kidney damage and memory loss. (Patnaik, P. 1999. A Comprehensive Guide to the Hazardous Properties of Chemical Substarwes, 2nbrain damage has been noted among children. Lead bioaccumulates in bones and teeth. The metal is classified as an environmental priority pollutant by the US EPA. 

Thallium chloride is highly toxic. Acute toxic effects are those of thallium poisoning. 

Comprehensive toxicity studies are carried out by animal testing in order to ascertain whether the product exhibits any short-term or long-term toxicity. Acute toxicity is usually assessed by administration of a single high dose of the test drug to rodents. Both rats and mice (male and female) are usually employed. The test material is administered by two means, one of which should represent the proposed therapeutic method of administration. The animals are then monitored for 7-14 days, with all fatalities undergoing extensive post-mortem analysis. 

Phenytoin, like lidocaine, is more effective in the treatment of ventricular than supraventricular arrhythmias. It is particularly effective in treating ventricular arrhythmias associated with digitalis toxicity, acute myocardial infarction, open-heart surgery, anesthesia, cardiac catheterization, cardioversion, and angiographic studies. 

Acute toxicity — acute dose that is lethal in 50% of animals usually two species, usually two routes of administration... 

Ethanol Multiple effects on neurotransmitter receptors, ion channels, and signaling pathways Antidote in methanol and ethylene glycol poisoning Zero-order metabolism duration depends on dose Toxicity Acutely, CNS depression and respiratory failure chronically, damage to many systems, including liver, pancreas, GI tract, and central and peripheral nervous systems Interactions Induces CYP2E1 Increased conversion of acetaminophen to toxic metabolite... 

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