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The drug name provided appears to be encoded. Assuming you are requesting information on **Acetaminophen**. ## Overview Acetaminophen (N-acetyl-para-aminophenol, APAP) is an analgesic and antipyretic agent. It is widely available over-the-counter and by prescription. ## Primary Indications * Pain relief (mild to moderate) * Fever reduction ## Adult Dosing * **Analgesia/Antipyresis:** 325 mg to 1000 mg every 4 to 6 hours as needed. * **Maximum Daily Dose:** 4000 mg per 24 hours for adults not under medical supervision. For those under medical supervision, a maximum of 1000 mg every 6 hours (4000 mg daily) is generally recommended, but some guidelines suggest a potential to go up to 4000 mg daily with careful monitoring. **However, due to concerns about hepatotoxicity, many clinicians prefer to limit the maximum daily dose to 3000-3250 mg per 24 hours, especially for chronic use or in patients with risk factors.** Consult local protocols for specific maximums. ## Pediatric Dosing Dosing is weight-based and formulation-dependent. Always use the measuring device provided with the product. * **Analgesia/Antipyresis:** 10-15 mg/kg per dose every 4 to 6 hours as needed. * **Maximum Daily Dose:** Typically not to exceed 5 doses (75 mg/kg) in 24 hours. Consult product labeling for specific age and weight restrictions for each formulation. ## Dose Adjustments * **Hepatic Impairment:** Use with caution and potentially reduced doses. Severe hepatic impairment requires significant dose reduction or avoidance. * **Renal Impairment:** Dose adjustments are generally not required for mild to moderate renal impairment, but caution is advised. ## Contraindications * Known hypersensitivity to acetaminophen or any component of the formulation. ## Adverse Effects * **Common:** Generally well-tolerated at therapeutic doses. * **Serious:** Hepatotoxicity (especially with overdose or chronic high doses), acute renal failure, Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), anaphylaxis. ## Key Drug Interactions * **Warfarin:** Chronic, regular use of acetaminophen may increase INR. Monitor INR closely. * **Isoniazid, Rifampin, Phenytoin, Carbamazepine, Barbiturates:** These drugs can induce hepatic enzymes, increasing the risk of acetaminophen-induced hepatotoxicity, particularly with concurrent excessive acetaminophen intake. * **Alcohol:** Chronic, heavy alcohol consumption increases the risk of hepatotoxicity. Avoid concurrent use, especially with higher doses of acetaminophen. ## Monitoring * **Hepatic Function:** Consider monitoring in patients with risk factors for liver disease, chronic high-dose use, or suspected overdose. * **Renal Function:** Consider monitoring in patients with renal insufficiency or risk factors. * **INR:** If patient is on warfarin. ## Clinical Pearls * Acetaminophen is a component of many combination products (e.g., opioid analgesics, cold and flu remedies). Patients must be educated to avoid exceeding the maximum daily dose by taking multiple acetaminophen-containing products. * The risk of hepatotoxicity is significantly increased with overdose, intentional or unintentional. * Always confirm the concentration of pediatric liquid formulations, as they can vary significantly between products. *** **Disclaimer:** This information is intended for educational purposes and is not a substitute for professional medical advice. Always consult the most current prescribing information, patient education materials, and relevant clinical guidelines before making any treatment decisions.