Drug-induced liver toxicity or hepatitis due to medications can cause serious symptoms or liver damage if not promptly and appropriately treated. This article will discuss hepatitis due to medications, explore the symptoms of liver toxins, how to diagnose the condition, and its treatment. Additionally, it will cover types of medications that can cause liver damage, such as symptoms of acetaminophen-induced liver toxicity, and answer the question of whether drug-induced liver toxicity is contagious.
What is Drug-Induced Liver Toxicity?
The liver filters everything that enters the body, removing alcohol, medications, and chemicals from your blood. It then processes unwanted parts so they can be excreted through urine or bile.
Sometimes, while the liver is performing its blood-processing function, toxins can form, leading to liver inflammation and damage.
Drug-induced liver toxicity can be mild or severe. If it persists for a prolonged period, it can cause permanent scarring or liver fibrosis. This can ultimately lead to liver failure or even death. In severe cases, as with the use of acetaminophen, even short-term use may be enough to cause liver failure.
What are the Symptoms of hepatitis due to medications?
- Fever
- Diarrhea
- Dark-colored urine
- Itching
- Jaundice, or yellowing of the eyes and skin
- Headache
- Loss of appetite
- Nausea
- Stomach pain
- Vomiting
- Weight loss
- Pale-colored stools
Symptoms may appear within hours of exposure to the cause or you may experience a gradual onset of liver toxin symptoms over days or weeks of regular exposure.
Causes of Hepatitis Due to Medications
One of the liver’s essential functions is breaking down and processing medications. Some medications and dietary supplements have the potential to cause liver cell damage, including:
Acetaminophen-Induced Liver Toxicity
Acetaminophen or paracetamol is a major cause of liver failure and is commonly used as a pain reliever.
Taking too much acetaminophen is the primary cause of most cases of acute and sudden liver failure. Some genetic factors and other medications you take may increase the risk of drug-induced liver toxicity.
Symptoms of acetaminophen-induced liver toxicity usually appear between 24 and 72 hours after taking the medication. Symptoms typically manifest two to four days after first taking it.
Antiseizure Medications and Drug-Induced Liver Toxicity
Modern medications used to treat seizures are rarely associated with liver damage. However, some older medications may lead to liver damage. Anti seizure medications that may cause liver damage include:
- Dilantin (phenytoin)
- Felbatol (felbamate)
- Valproic acid
Hepatitis due to medications may occur within one to six weeks after starting the medication.
Antibiotics and Drug-Induced Liver Toxicity
Some antibiotics are linked to liver damage, including:
- Isoniazid
- Metronidazole
- Amoxicillin-clavulanate
- Azithromycin
- Tetracycline
- Clindamycin
Liver inflammation due to medications usually appears within weeks of taking them.
Statins and hepatitis due to medications
Statins are common drugs used to treat high cholesterol. People taking statins may experience high levels of liver enzymes in blood tests, which could be a sign of drug-induced liver fibrosis.
Lipitor (atorvastatin) is a statin drug commonly associated with drug-induced liver toxicity.
Liver injury from statins does not occur immediately; it may take from a month to up to 10 years for damage to become apparent.
Drug Supplements and Drug-Induced Liver Toxicity
There are also dietary supplements that can harm the liver, including:
- Steroids that stimulate muscle growth, with liver injury from dietary supplements typically appearing within one to 24 months after starting them.
- Green tea extract, which can cause liver injury within one to six months of starting.
- Multicomponent dietary supplements: Products containing more than one ingredient can cause liver damage within one to four months of starting, depending on their contents and dosages.
- Vitamin A: Can lead to liver damage after several months of use.
- Niacin: Vitamin B3 used to treat high cholesterol. Can cause liver damage within days to several months after starting.
Diagnosing Drug-Induced Liver Toxicity
The doctor will conduct a physical examination, review symptoms and medical history, and inquire about the use of any medications or dietary supplements. Diagnostic tests for hepatitis due to medications may include:
- Blood tests
- Ultrasound
- X-rays
- Liver sample
Treatment of Drug-Induced Liver Toxicity
- Discontinuing the medications causing liver toxicity.
- Avoiding alcohol and herbal supplements or toxic chemicals to the liver.
- N-acetylcysteine: If an overdose of acetaminophen is suspected to cause drug-induced liver toxicity.
- Hospital care: In the hospital, you may receive care to treat symptoms, such as intravenous fluids for dehydration or anti-nausea medications.
- Liver transplantation: The last resort if liver damage is severe.
Can Drug-Induced Liver Toxicity Be Prevented?
You cannot know in advance which medications or chemicals may cause drug-induced liver toxicity. However, some preventive measures include:
- Taking medications as prescribed by your doctor and adhering to the recommended dosage.
- Avoiding dietary supplements containing herbs that may be toxic to the liver.
- Following safety rules if you use any chemicals or solvents at work.
- Keeping any medications or chemicals in your home out of reach of children.
Best Doctor for Drug-Induced Liver Toxicity Treatment
Dr. Mohamed Al Boraie is considered the best doctor for drug-induced liver toxicity treatment. He is a liver and gastrointestinal endoscopy consultant, a Fellow of the Royal College of Physicians in England, and a member of the American College of Gastroenterology. Dr. Mohamed Al Boraie is currently an assistant professor of internal medicine, liver, and gastrointestinal diseases at Al-Azhar University Faculty of Medicine in Cairo.
Dr. Mohamed Al Boraie regularly participates in many local and international scientific conferences and has numerous scientific research articles published in prestigious medical journals.
Book your appointment now if you would like to consult with Dr. Mohamed Al Boraie regarding drug-induced liver toxicity diagnosis and the treatment of acute and chronic liver diseases.