Table 2.

Classification of radioprotector agents and their relevant representatives [205].

Radioprotectors Classification	Examples of Radioprotector Agents
Thiol-containing molecules	WR-2721 (amifostine) Dimethyl sulfoxide (DMSO) Glutathione (GSH) N-acetylcysteine (NAC) Erdosteine
Cyclic nitroxides	JP4-039 (gramicidin S-derived nitroxide)
Antimicrobials	Tetracycline, minocycline Ciprofloxacin Furazolidone
Phytochemicals	Plant extracts Polyphenolic phytochemicals Non-polyphenolic phytochemicals
Vitamins	Lutein Vitamin C, D2, D3, E
Oligoelements	Se, Zn, Mn
Superoxide dismutase mimetics and nanoparticles	EUK-207 Avasopasem manganese (GC4419) BMX-001
Hormonal and horomonal mimetics	Catecholamine agonists Somatostatin analogs Melatonin
Growth factors	Palifermin
Metformin