ORAL THYROID THERAPEUTIC AGENT The invention relates to an oral thyroid therapeutic agent, containing levothy- roxine or its pharmaceutically compatible salts as active agents, in combina- tion with at least one anti-oxidant and at least one absorption agent, wherein the weight percentage of active agents: anti-oxidants: adsorption agent is 1 : 1 : 5 - 1 : 50 : 100. FIGURE 1