Product information

From Health Canada

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Natural Product Number (NPN):
Market status:
Licence Status:
Brand name(s):
Potassium Iodide
Licence holder:
New Roots Herbal Inc.
Dosage Form:
Recommended route of administration:


Recommended dose:
Sub population (Sub Pop.) Quantity (Qty) Frequency (Freq.)
Sub Pop. Age Min. Max. UoM Footnote1 Age Qty Min. Max. UoM Qty Freq. Min. Max. UoM Freq.
Adults 2.0 tablet 1 daily
Adults and Adolescents 4 18 year(s) 1.0 tablet 1 daily
Children 2 36 month(s) 0.5 tablet 1 daily
Recommended use or purpose:
Thyroid blocking agent for use in nuclear emergencies which involve the release of radioiodine.
Risk Information:
Cautions and Warnings 
Consult a health care practitioner prior to use if you are pregnant or breastfeeding. Consult a health care practitioner prior to use if you have Graves' disease or autoimmune thyroiditis. Breastfed infants should receive their dose of iodine by direct administration and should not rely on a protective effect from breast milk. This product is not intended for use as a generic anti-radiation drug. It is only effective for specific use during radioiodine exposure. Keep out of reach of children. This product is not intended for nutritional use
Do not take this drug if you are allergic to iodine, have iodine sensitivity, dermatitis herpetiformis, hypocomplementemic vasculitis, or past or present history of hyperthyroidism. Do not take this medicine more often or at higher dose than directed by a health care practitioner or health care authority. More potassium iodate will not help you and may increase the risk of serious side effects.
Known Adverse Reactions 
Serious risks may be associated with the repeated use of this product. Repeated doses should be supervised by a health care practitioner. Some people may experience sialadenitis (an inflammation of the salivary glands), gastrointestinal disturbances or temporary rash. If symptoms persist or worsen, consult a health care practitioner. In case of an allergic reaction (swelling of arms, face, legs, lips, tongue, throat, difficulty in breathing, speaking or swallowing; shortness of breath and/or appearance of a severe rash or fever and joint pain), contact a healthcare practitioner or public health authority immediately.
List of medicinal ingredients:
Medicinal ingredients Quantity (Qty) Extract Potency
Potassium Iodide 65.0 milligrams
List of non-medicinal ingredients:
  • Magnesium stearate
  • Microcrystalline cellulose
Date of licensing:
Revised date of licence:

Application information

Related information

Compendium of monographs

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