does selenium increase glutathione as an Antioxidant: Roles and Clinical Applications in Critically Ill and Trauma Patients: A Narrative Review Frontiers | Selenium-enriched plant foods:

J Biochem Mol Toxicol 34:e22439

Clinical trials have also demonstrated that therapy with PBA in combination with vitD3 can promote the clearances of M.tb from the respiratory tract, accelerate sputum culture conversion, reduce clinical symptoms, and promote favorable immunomodulation, thus improving treatment outcomes [146]

The most commonly reported side effects are mild and transient: injection site redness or minor bruising, transient fatigue in the first one to two weeks, and occasionally mild headache following the first few injections, a pattern sometimes attributed to the acute shift in cellular energy metabolism as AMPK pathways are upregulated [3]

Not that it would give you cancer