TG and thyrotoxicosis: Blood tests performed 21 weeks (147 days) after the PVP-I gargling discontinuation showed TSH levels within the normal range (TSH, 0.94 μIU/mL; FT3, 3.4 pg/mL; FT4, 0.8 ng/dL; thyroglobulin, 28.6 ng/mL), indicating improvement in T3 thyrotoxicosis.