Background: Acetaminophen (N-acetyl-para-aminophenol, or APAP) poisoning, whether intentional or accidental, is a major general health problem, with its toxicity prevalence significantly increasing in many countries. Currently, acetaminophen is considered one of the main causes of acute liver failure globally.

Aim: The aim of this study was to evaluate the possible hepatoprotective effect of Omega-3,6,9 against acetaminophen-induced hepatotoxicity in albino male mice.

Methods: Thirty-five albino male mice were randomly divided into five groups: Group 1 (the negative control) received liquid paraffin orally at a dose of 10 ml/kg for ten days, followed by a single intraperitoneal injection (IP) of 10 ml/kg normal saline on the eleventh day of the test. Group 2 (positive control) received liquid paraffin. Group 3 was treated with Omega-3,6,9 (50 mg/kg/80 mL). Group 4 was treated with Omega-3,6,9 (100 mg/kg/35 mL). Group 5 was treated with N-acetylcysteine (100 mg/kg/10 ml). The mice were treated with Omega-3,6,9, N-acetylcysteine, and liquid paraffin once daily by oral gavage for ten days.

Result: TNF-α, IL-10, ALT, and AST levels in the positive control group were significantly higher than those in the negative control group. TNF-α, IL-10, ALT, and AST levels in mice given Omega-3,6,9 (50 mg/kg), Omega-3,6,9 (100 mg/kg), and N-acetylcysteine (100 mg/kg) orally prior to acetaminophen injection were significantly decreased compared to those in the positive control group.

Conclusion: Oral intake of Omega-3,6,9 may reduce the risk of acetaminophen-induced liver damage.