povidone iodine

Skin irritation, burns, or corrosive reactions.

CONTRAINDICATED for concurrent topical use. Thoroughly clean and dry the skin if switching between these agents.

Skin irritation, burns, and potential systemic toxicity due to the formation of highly corrosive mercuric iodide.

CONTRAINDICATED. Avoid concurrent use of povidone iodine with mercury-containing antiseptics or other mercurial compounds.

Reduced efficacy of radioactive iodine therapy for thyroid cancer or hyperthyroidism, as the thyroid gland will preferentially take up non-radioactive iodine from povidone iodine.

Discontinue povidone iodine for several weeks prior to and during radioactive iodine therapy. Consult with an endocrinologist or nuclear medicine specialist for specific timing.

Increased risk of amiodarone-induced thyroid dysfunction (hypothyroidism or hyperthyroidism) due to the additional iodine burden.

Avoid prolonged or extensive use of povidone iodine in patients on amiodarone. Monitor thyroid function closely if concurrent use is necessary.

Increased risk of thyroid dysfunction (especially hyperthyroidism in susceptible individuals). Interference with diagnostic tests (e.g., radioactive iodine uptake for thyroid cancer).

Consider alternative antiseptics if radioactive iodine uptake is planned. Inform radiologists about recent povidone iodine use. Monitor thyroid function if concerns arise.

Potential for altered thyroid status (hypo- or hyperthyroidism), requiring levothyroxine dose adjustment. Interference with monitoring of thyroid function.

Monitor thyroid function tests closely. Avoid prolonged or extensive use of povidone iodine. Adjust levothyroxine dose as needed.

Hypothyroidism or hyperthyroidism, potentially exacerbating lithium-induced thyroid effects or altering lithium levels due to thyroid status changes.

Avoid prolonged or extensive use of povidone iodine in patients on lithium. Monitor thyroid function and lithium levels closely if concurrent use is unavoidable.

Reduced efficacy of antithyroid drugs, potentially leading to uncontrolled hyperthyroidism.

Avoid prolonged or extensive use of povidone iodine. Monitor thyroid function tests closely. Dose adjustment of antithyroid drugs may be necessary.

May alter the required dose of thyroid hormones, potentially leading to symptoms of hypo- or hyperthyroidism if thyroid function is significantly affected by absorbed iodine.

Monitor thyroid function closely if extensive or prolonged use of povidone iodine is necessary in patients on thyroid hormone replacement. Adjust levothyroxine dose as needed.

While not a strong interaction, some sources suggest a theoretical reduction in efficacy if mixed directly or applied immediately after one another without rinsing. No significant systemic interaction.

Generally, it's best to avoid direct mixing. If sequential application is necessary, ensure the area is dry between applications or rinse with water if practical. Often used as alternative antiseptics rather than concurrently.

Reduced antiseptic efficacy of both agents if applied simultaneously or in close succession without rinsing.

Avoid simultaneous application. If both are needed, ensure the area is thoroughly rinsed between applications.

Reduced antiseptic efficacy of both agents due to chemical reaction and breakdown.

Avoid simultaneous application. If both are needed, ensure the area is thoroughly rinsed between applications.