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Hy's law is a rule of thumb that a patient is at high risk of a fatal drug-induced liver injury if given a medication that causes hepatocellular injury (not Hepatobiliary injury) with jaundice. [1] The law is based on observations by Hy Zimmerman, a major scholar of drug-induced liver injury. [2][3][4] Some have suggested the principle be ...
Hepatogenous poisoning. Hepatotoxicity (from hepatic toxicity) implies chemical-driven liver damage. Drug-induced liver injury (DILI) is a cause of acute and chronic liver disease caused specifically by medications and the most common reason for a drug to be withdrawn from the market after approval.
Acute liver failure is the appearance of severe complications rapidly after the first signs (such as jaundice) of liver disease, and indicates that the liver has sustained severe damage (loss of function of 80–90% of liver cells). The complications are hepatic encephalopathy and impaired protein synthesis (as measured by the levels of serum ...
Microcystins are primarily hepatotoxic compounds; therefore, noticeable toxic effects are not immediate. Most of the toxicity studies have been done with mice that received intra-peritoneal injections. The most common effect is liver damage, [10] Two of the most commonly seen symptoms are gastroenteritis and cholestatic liver disease.
Hepatotoxin. A hepatotoxin (Gr., hepato = liver) is a toxic chemical substance that damages the liver. It can be a side-effect, but hepatotoxins are also found naturally, such as microcystins and pyrrolizidine alkaloids, or in laboratory environments, such as carbon tetrachloride, or far more pervasively in the form of ethanol (drinking alcohol ...
Early symptoms of serious liver damage include nausea, vomiting and abdominal pain, followed by jaundice and pruritus. The mechanism is thought to be a direct toxicity of elevated serum niacin. Lowering dose or switching to the immediate release form can resolve symptoms. In rare instances the injury is severe, and progresses to liver failure. [15]
Liver failure is the inability of the liver to perform its normal synthetic and metabolic functions as part of normal physiology. Two forms are recognised, acute and chronic (cirrhosis). [ 1 ] Recently, a third form of liver failure known as acute-on-chronic liver failure ( ACLF ) is increasingly being recognized.
Liver toxicity is an uncommon but potentially serious side effect, and risk groups e.g. those with already impaired liver function should be monitored closely. That said, the rate of disulfiram-induced hepatitis are estimated to be in between 1 per 25,000 to 1 in 30,000, [ 11 ] and rarely the primary cause for treatment cessation.