Diphtheria antitoxin is highly effective in neutralizing the diphtheria toxin and reducing the risk of serious complications, such as myocarditis and neuropathies. However, its effectiveness is significantly enhanced when combined with appropriate antibiotic therapy (such as penicillin or erythromycin) to eradicate the bacterial infection. Vaccination with the diphtheria toxoid vaccine is the best preventive measure, but the antitoxin remains a critical treatment for those who contract the disease.
