Frequently asked questions

1. Questions about iodine deficiency and iodide

Why is it important that I get iodine with food or with a supplement?

Iodine is an essential mineral nutrient and a trace element. A “trace element” is one that is needed by the body in minute quantities while “essential” means that the body needs such a mineral but cannot produce it by itself. So it is important for your health to take sufficient iodine with food.

How often does an iodine deficiency occur?

An estimated 1.9 billion people are at risk from iodine deficiency worldwide. Data reports indicate that inhabitants of 21 countries suffer from mild iodine deficiency and nine are moderately iodine deficient. On the other hand, more than 110 countries have an adequate iodine intake. However in these countries some subgroups such as vegans, vegetarians, weaned infants or those who do not use iodised salt may still be deficient in iodine. There is also an increased need of iodine for pregnant and breast feeding women and they are susceptible to iodine deficiency.

What is the recommended daily iodine intake?

The necessary daily intake is dependent on a person’s age. The United Nations International Children’s Fund (UNICEF), the International Council for Control of Iodine Deficiency Disorders (ICCIDD) and the World Health Organization (WHO) recommend the following amounts:

Age group

Daily recommended iodine intake (μg)

0 – 59 months


6 – 12 years


Above 12 years, including adults


Pregnant women or breastfeeding mothers


Different agencies have recommended different intakes to meet iodine needs of non-pregnant, pregnant and breastfeeding women, ranging from 150 to 290 µg/day.

What are typically symptoms for an iodine deficiency disease?

Typically symptoms of an iodine deficiency disease include:


  • Tiredness
  • Problems with concentration
  • Decrease in work productivity
  • Apathy
  • Reduced mental functions
  • Lack of physical energy

Is there a possibility that I may be consuming excessive iodine?

After ingestion of many mg of iodine acute iodine poisoning may occur. Although, in case of healthy person with no other problems and iodine sufficiency, the thyroid is able to adjust to a wide range of iodine intakes, so healthy individuals may tolerate up to 1 mg daily intake.

What would be the symptoms of excessive iodine consumption?

An acute iodine poisoning can cause gastrointestinal or cardiovascular symptoms, or even coma. It can also cause the thyroid to become over or underactive. Symptoms of excess thyroid hormone production as a result of an overactive thyroid include hyperactivity, irritability, heat intolerance, palpitations, weakness, fatigue and weight loss. Symptoms of less thyroid hormones as a result of an underactive thyroid include tiredness, weakness, poor memory and difficulty concentration, weight gain, feeling cold, dry skin and hair loss.

A lack of thyroid hormones can have a lot of effects on my body. But what happens if the concentration of these hormones is too high?

Thyroid hormones can have effects on virtually every cell in your body. Therefore an excess of these hormones can affect nearly every organ or tissue of the body:

  • Central nervous system (CNS): Nervousness, emotional lability, hyperkinesia, tremor
  • Skin/hair: Pink, warm, moist skin, detachment of nails
  • Cardiovascular: Increased cardiac performance
  • Gut: Weight loss, increased bowel activity (loose motions)
  • Metabolic: Increased resting metabolic rate, increased appetite, weight loss

2. Questions about Iodomarin®

When should I take Iodomarin®?

Iodomarin® has two distinct therapeutic indications:

  • Prophylaxis of iodine deficiency (e. g. prophylaxis of goitre in iodine deficiency areas and after removal of iodine deficiency goitre)
  • Treatment of goitre in new-borns, children, adolescents and young adults

What is the recommended dosage of Iodomarin®?

The recommended dosage of Iodomarin® depends on the indication and on your age.


Age group

Daily dose of

Iodide (µg)

Iodomarin® 100

Iodomarin® 200

Goitre prophylaxis in iodine deficiency

Infants and children

50 – 100

½ -1 tablet

½ tablet

Adolescents and adults

100 – 200

1-2 tablets

½ -1 tablet

Pregnant and breast-feeding women


2 tablets

1 tablet

Prophylaxis of new goitre growth after surgery or a treatment of iodine deficiency goitre with medicines


Not specified

100 - 200

1-2 tablets

½ -1 tablet

Treatment of iodine deficiency goitre

New-borns, children, and adolescents

100 - 200


1-2 tablets

½ -1 tablet

Young adults

300 - 500

3-5 tablets

1½ -2 ½  tablets

How should I take Iodomarin®?

You should take the Iodomarin® tablets after a meal with sufficient liquid, e. g. a glass of water.

How long do I have to take Iodomarin®?

Generally Iodomarin® must be administered for prophylaxis over a period of years, and not uncommonly for life. For treating goitre in new-borns the length of use is usually 2 – 4 weeks and 6 – 12 months or more in children, adolescents and adults.

Are there any contraindications for Iodomarin®?

Yes, there can be contraindications, therefore you should not take Iodomarin®:

  • If you are allergic to potassium iodide or any of the other ingredients
  • In a manifestly overactive thyroid (with complaints)
  • In a latently overactive thyroid (without complaints) in a dosage of over 150 μg iodine per day
  • In benign, hormone-forming growth or uncontrolled hormone-forming areas of the thyroid in a dosage of 300 – 1,000 μg iodine per day (except in treatment before surgery)

Can I take Iodomarin® if I am pregnant or breast-feeding?

In pregnancy and the breast-feeding period an increase iodine requirement exists, meaning that adequate iodine intake is particularly important. However, iodine and iodine-containing preparations should only be taken with evaluation of benefit and possible risks and only at the explicit direction of the doctor. Please ask your doctor or pharmacist for advice before taking Iodomarin®.

What does Iodomarin® contain?

Iodomarin® tablets contain potassium iodine. Other ingredients are lactose monohydrate, light magnesium carbonate, gelatine, sodium starch glycolate (type A), colloidal anhydrous silica and magnesium stearate.

Can I take Iodomarin® if I am lactose intolerant?

Iodomarin® tablets contain lactose. Please contact your doctor before taking Iodomarin® if you have  intolerance to lactose.

Are there any side effects if I take Iodomarin®?

Like all medicines, Iodomarin® can cause side effects, although not everybody will get them. When iodide is used for prophylaxis, undesirable effects are generally not expected. However, in the presence of large uncontrolled hormone-forming areas in the thyroid and daily iodine administration of more than 150 μg, an overactive thyroid becoming manifest cannot be ruled out completely.

In very rare cases, which means in less than 1 in 10,000 people taking Iodomarin® the following side effects could occur:

  • Iodine-induced rhinitis
  • Skin reactions
  • Swelling of the skin or mucous membranes
  • Fever
  • Acne
  • Salivary gland swelling
  • Iodine-induced overactive thyroid (when used for the therapy of goitre in adults)

If you are taking Iodomarin® and get any side effects, talk to your doctor or pharmacist. This included any side effects not listed here.

How should I store Iodomarin®?

Iodomarin® does not require any special storage conditions. The package should be stored in a dry place out of the reach of children, at temperature from + 5 °С to + 25 °С, protected from direct sunlight. Do not use the tablets after the expiry date on the label and the outer carton.

For further information please download our brochures or visit our FAQ section.