Lightpen Injection (Acetaminophen)

Adult administration

Adults weighing 50kg or more: administer acetaminophen at 1000mg per dose, up to 4 times a day, with a minimum dosing interval of 4 hours. The maximum daily dosage must not exceed 4 grams. Patients with severe kidney impairment (creatinine clearance ≤30ml/min): a minimum dosing interval of 6 hours is advisable. Administration method: administered intravenously over 15 minutes.

Child administration

Children weighing 33kg (approximately 11 years old) and above, and adults weighing less than 50kg: 15mg/kg per dose of acetaminophen (about 1.5ml/kg), with a minimum dosing interval of 4 hours.

This medication must be taken in the exact dosage prescribed. Confusing milligrams and milliliters can lead to serious side effects or even death, so caution is necessary. Once oral medication can be administered, it is advisable to switch to an appropriate analgesic as soon as possible. Make sure to check if other medications contain this medication's ingredients to avoid overdose. Exceeding the recommended dosage can lead to severe liver damage, so adherence to the prescribed dosage is mandatory. Symptoms of liver damage typically appear between 2 to 6 days after administration. Patients with weak liver function or pre-existing liver conditions should consult with a doctor before taking this medication, and regular liver function tests are necessary when used at high doses over extended periods. Those who regularly consume alcohol must consult a specialist before taking this medication, as the risk of liver damage may increase. If symptoms such as skin rashes, red spots, blisters, or hives appear while taking this medication, discontinue use immediately and consult a doctor. Patients who have allergic reactions to this medication or have peptic ulcers, severe liver, kidney, or heart diseases, and those taking specific medications should not use it. Patients with liver or kidney disease, bleeding tendencies, asthma, the elderly, pregnant and nursing women, and those taking specific medications should use this medication cautiously and follow the advice of a healthcare professional. This medication can rarely cause a variety of side effects, including blood abnormalities, liver dysfunction, kidney problems, and severe skin reactions, so if any abnormal symptoms occur, immediate consultation with healthcare staff is required. It can interact with other drugs, so if there are any current medications being taken, this must be disclosed, particularly when used alongside specific antibiotics, anti-tuberculosis drugs, and anticonvulsants. In case of overdose, symptoms such as nausea, vomiting, loss of appetite, and abdominal pain may appear, and in severe cases, it can lead to liver failure or coma, requiring immediate emergency treatment. This medication does not affect driving or machinery operation and should not be mixed with other drugs. Children and the elderly should use the minimum dosage and be closely monitored. In cases of infection, it should be administered alongside appropriate antibacterial agents. It is known that the use of this medication during pregnancy does not pose a significant risk to the fetus, but benefits and risks should be carefully evaluated before use. While using during breastfeeding, although a small amount is secreted into breast milk, there have been no reports of adverse reactions, making it permissible to use. Patients with severely impaired kidney function should use it cautiously with extended intervals between doses. This medication should be stored between 1 and 30 degrees Celsius, kept in a sealed container to prevent exposure to air or moisture. Proper storage will maintain the medication's efficacy and prevent deterioration.

Serious side effects

Hives, severe swelling (angioedema), chest tightness, difficulty breathing, anaphylactic shock, severe allergic reactions, acute generalized exanthematous pustulosis, toxic epidermal necrolysis, Stevens-Johnson syndrome, fulminant hepatitis, liver necrosis, liver failure, liver dysfunction (jaundice), agranulocytosis, neutropenia, leukopenia, thrombocytopenia, coma, acute renal failure, shock, thrombocytopenia, severe edema, or urinary issues

Mild side effects

• Fatigue
• low blood pressure
• elevated liver transaminase levels
• neurological disorders
• maculopapular rash
• injection site reactions
• maculopapular eruptions
• pemphigus-like reactions
• pustular rash
• nausea

This medication should be stored at room temperature between 1 and 30 degrees Celsius, and it is important to keep it in a sealed container to prevent air or moisture ingress. Proper storage will maintain the effectiveness of the medication and prevent deterioration.

Appearance

A clear, pale yellow transparent liquid filled in a colorless and transparent plastic container for injection.

Package unit

100mL/pack