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Hace 4 horas · The LD 50 (median lethal dose) for pure oxalic acid in rats is about 375 mg/kg body weight, or about 25 grams for a 65-kilogram (143 lb) human. Although the oxalic acid content of rhubarb leaves can vary, a typical value is about 0.5%, [26] so almost 5 kg of the extremely sour leaves would have to be consumed to reach the LD 50 .
Hace 1 día · Fentanyl is a highly potent synthetic piperidine opioid primarily used as an analgesic.It is 20 to 40 times more potent than heroin and 100 times more potent than morphine; its primary clinical utility is in pain management for cancer patients and those recovering from painful surgeries. Fentanyl is also used as a sedative. Depending on the method of delivery, fentanyl can be very fast acting ...
