Paraquat poisoning is a critical and frequently lethal condition due to its extreme toxicity, especially concerning lung health. This case report outlines the clinical journey and treatment of a 33-year-old Iranian male who survived significant ingestion of paraquat, an occurrence that is generally linked to unfavorable outcomes. The patient was admitted after a suicide attempt involving paraquat, presenting symptoms such as nausea, vomiting, and erythematous rashes. Despite receiving immediate and intensive treatment—including hemodialysis, antioxidant therapy, and comprehensive supportive care—the patient experienced acute lung injury on the fifth day of hospitalization, as confirmed by computed tomography (CT) scans. This case highlights the vital role of early intervention and ongoing monitoring in the management of paraquat poisoning, particularly in reducing the risk of severe complications like lung injury. Although the patient was ultimately discharged in stable condition, the development of lung damage emphasizes the necessity for further research into more effective therapies for paraquat toxicity. This report adds to the limited clinical knowledge surrounding paraquat poisoning, offering valuable insights for healthcare providers dealing with similar cases.