Background pattern

Iodid 100

Ask a doctor about a prescription for Iodid 100

5.0(7)
Doctor

Tarek Agami

General medicine10 years of experience

Dr. Tarek Agami is a general practitioner registered in both Portugal and Israel, with broad experience in family and preventive medicine. He offers online consultations for adults and children, providing personalised support for primary care needs, chronic disease management, and everyday health concerns.

Dr. Agami received clinical training and worked in leading medical institutions in Israel (Kaplan Medical Center, Barzilai Medical Center, Wolfson Medical Center) and Portugal (European Healthcare City, Viscura Internacional, Hospital Dr. José Maria Grande, Hospital Vila Franca de Xira). His approach combines international medical standards with individualised attention to each patient.

Main areas of consultation:

  • Diagnosis and treatment of acute and chronic conditions (high blood pressure, diabetes, respiratory infections, cardiovascular symptoms)
  • Evaluation of symptoms and guidance on further diagnostic testing
  • Preventive check-ups and regular health monitoring
  • Medical support during travel or after relocation
  • Treatment adjustments and lifestyle recommendations based on your personal history
Dr. Agami provides medical support for patients using GLP-1 medications (such as Ozempic or Mounjaro) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Portugal and Israel.

Dr. Agami is committed to evidence-based, patient-centred care, ensuring that each person receives trusted medical support tailored to their health goals.

CameraBook a video appointment
€69
Today11:10
Today11:35
Today12:00
Today12:25
Today12:50
More times
This page is for general information. Consult a doctor for personal advice. Call emergency services if symptoms are severe.
About the medicine

How to use Iodid 100

Package Leaflet: Information for the User

Jodid 100, 100 g, tablet
Potassium iodide

Read the package leaflet carefully before taking the medicine, as it contains important information for the patient.

  • Keep this leaflet, you may need to read it again.
  • In case of any doubts, consult a doctor or pharmacist.
  • This medicine has been prescribed specifically for you. Do not pass it on to others. The medicine may harm another person, even if their symptoms are the same.
  • If the patient experiences any side effects, including any not listed in this leaflet, they should inform their doctor or pharmacist. See section 4.

Table of Contents of the Leaflet

  • 1. What is Jodid 100 and what is it used for
  • 2. Important information before taking Jodid 100
  • 3. How to take Jodid 100
  • 4. Possible side effects
  • 5. How to store Jodid 100
  • 6. Contents of the pack and other information

1. What is Jodid 100 and what is it used for

Adequate iodine intake is necessary for the intrauterine synthesis of thyroid hormones and for the proper construction and functioning of the thyroid gland. Inadequate iodine supply is a potential cause of disease, which can lead to goiter (enlargement of the thyroid gland), and in severe cases, congenital brain function disorders (reduced intelligence). Jodid 100 tablets provide iodine and are indicated for the prevention and treatment of iodine deficiencies.
Jodid 100 is used in:

  • preventing the formation of goiter in case of iodine deficiency, especially during pregnancy and breastfeeding;
  • preventing recurrent goiter growth after completion of thyroid hormone treatment or after surgical removal of goiter caused by iodine deficiency;
  • treating goiter caused by iodine deficiency in newborns, children, and adolescents.

2. Important information before taking Jodid 100

When not to take Jodid 100

  • in overt hyperthyroidism;
  • in latent hyperthyroidism, with iodine doses exceeding 150 micrograms/day;
  • in cases of autonomous thyroid adenoma and in the presence of focal and diffuse nodular goiter with autonomous secretion;
  • if the patient is allergic to the active substance or any of the other ingredients of this medicine (listed in section 6).

Warnings and precautions

Before taking the medicine, it is necessary to determine whether the patient currently has or has had hyperthyroidism or nodular goiter.
Before starting iodine treatment, appropriate diagnostics should be performed to rule out diffuse or focal autonomous thyroid hormone secretion, as in such cases, taking iodine in doses exceeding 150 micrograms/day may cause hyperthyroidism.
Iodine saturation of the thyroid gland may prevent optimal accumulation of radioactive iodine used for diagnostic or therapeutic purposes. The doctor should avoid giving the patient iodine before administering radioactive iodine for diagnostic or therapeutic purposes.

Jodid 100 and other medicines

Tell your doctor about all medicines you are currently taking or have recently taken, as well as any medicines you plan to take.

  • Iodine deficiency exacerbates the response to antithyroid treatment in hyperthyroidism, and iodine excess weakens this response. Therefore, if possible, the doctor should stop iodine administration before and during hyperthyroidism treatment.
  • Antithyroid drugs block the organic binding of iodine in the thyroid gland and can therefore act as goitrogenic factors.
  • Iodine uptake in the thyroid gland is competitively blocked by substances with the same "trapping" mechanism (such as perchlorate, which also blocks the internal circulation of iodine) and by non-transported substances, such as thiocyanate (at concentrations above 5 mg/dl).
  • Concomitant use of high doses of iodine, which blocks hormone secretion in the thyroid gland, and lithium may contribute to the development of goiter and hypothyroidism.
  • High doses of potassium iodide in combination with potassium-sparing diuretics may cause hyperkalemia.

Pregnancy and breastfeeding

If the patient is pregnant or breastfeeding, suspects she may be pregnant, or plans to have a child, she should consult her doctor before taking this medicine.
During pregnancy and breastfeeding, the demand for iodine increases. Therefore, it is particularly important to take iodine in the appropriate amount (200 μg/day). Iodine passes through the placenta and into breast milk. The iodine taken with dietary supplements should be considered. No additional iodine supplementation is necessary for breastfed newborns.
Due to the high sensitivity of the fetal and newborn thyroid gland, very high doses of iodine (in the order of milligrams) should be avoided during pregnancy and breastfeeding.
An exception is the preventive blocking of the thyroid gland with high doses of iodine after nuclear accidents.

Driving and operating machinery

Iodine does not affect the ability to drive vehicles or operate machinery.

Jodid 100 contains lactose

If the patient has previously been diagnosed with intolerance to some sugars, they should consult their doctor before taking the medicine.

3. How to take Jodid 100

Take this medicine always as directed by your doctor. In case of doubts, consult your doctor or pharmacist.
Recommended dose

Prevention of goiter formation in case of iodine deficiency

Infants and children: 50 – 100 micrograms of iodine/day
Adolescents and adults: 100 – 200 micrograms of iodine/day
Pregnancy and breastfeeding: 200 micrograms of iodine/day

Prevention of recurrent goiter growth after completion of thyroid hormone treatment or after surgical removal of goiter caused by iodine deficiency

  • 100 – 200 micrograms of iodine/day

Treatment of goiter caused by iodine deficiency

Newborns, children: 100 – 200 micrograms of iodine/day
Adolescents: 200 micrograms of iodine/day
Method of administration
Take the medicine after meals with a sufficient amount of liquid, i.e., with half a glass of water.
Prophylactic use of Jodid usually needs to last many years, often for a lifetime.
In the treatment of goiter caused by iodine deficiency in newborns, usually 2 to 4 weeks of treatment is sufficient. In children and adolescents, usually 6 to 12 months of iodine treatment is necessary, and sometimes longer.

Overdose of Jodid 100

  • Symptoms of toxic overdose may include: brown mucous membranes, vomiting, abdominal pain, and diarrhea.
  • Dehydration and shock may occur.
  • In rare cases, esophageal narrowing has been observed.
  • Deaths have occurred only after taking extremely high doses of iodine (30 - 250 ml of iodine).
  • Chronic overdose may lead to so-called iodism with symptoms such as: metallic taste in the mouth, rhinitis, conjunctivitis, irritation of the gastric and bronchial mucous membranes, skin changes such as blisters, thickening, peeling of the skin, and angioedema. In very rare cases, fever, acne, and increased salivation have been reported. Treatment of acute poisoning involves gastric lavage, symptomatic treatment of water and electrolyte disorders, and treatment of shock. In the case of chronic overdose, it is recommended to discontinue iodine use. In hypothyroidism caused by iodine, it is recommended to discontinue iodine administration and administer thyroid hormones. Hyperthyroidism caused by iodine is treated with antithyroid drugs; in very severe cases, hospitalization in the intensive care unit, plasmapheresis, and even thyroidectomy may be necessary.

4. Possible side effects

Like all medicines, Jodid 100 can cause side effects, although not everybody gets them.
In cases where there are large areas of autonomous secretion in the thyroid gland, it is not possible to completely rule out overt hyperthyroidism caused by iodine doses exceeding 150 micrograms/day.
In people with a predisposition to autoimmune thyroid diseases, it is possible to develop TPO antibodies (antibodies against thyroid peroxidase).

Reporting side effects

If you experience any side effects, including any not listed in this leaflet, you should inform your doctor, pharmacist, or nurse. Side effects can be reported directly to the Department of Monitoring of Adverse Reactions to Medicinal Products of the Office for Registration of Medicinal Products, Medical Devices, and Biocidal Products
Al. Jerozolimskie 181C
02-222 Warsaw, Poland
phone: +48 22 49 21 301
fax: +48 22 49 21 309
website: https://smz.ezdrowie.gov.pl
By reporting side effects, you can help gather more information on the safety of this medicine.

5. How to store Jodid 100

Do not store above 25°C.
Store in the outer packaging, protect from light.
Keep the medicine out of the sight and reach of children.
Do not use this medicine after the expiry date stated on the carton after: Expiry Date (EXP). The expiry date refers to the last day of the month.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. This will help protect the environment.

6. Contents of the pack and other information

What Jodid 100 contains

  • The active substance is potassium iodide. Each Jodid 100 tablet contains 130.8 micrograms (μg) of potassium iodide, equivalent to 100 μg of iodine.
  • The other ingredients are: magnesium stearate, microcrystalline cellulose, anhydrous colloidal silica, corn starch, powdered cellulose, lactose monohydrate.

What Jodid 100 looks like and contents of the pack

Round, white tablet, flat on both sides, with a scored line on both sides, with beveled edges and the inscription EM 33.
The tablet can be divided into equal doses.
Jodid 100 is available in packs containing 50 or 100 tablets in a cardboard box.
Not all pack sizes may be marketed.

Marketing Authorisation Holder

Merck Sp. z o.o.
Al. Jerozolimskie 142B
02-305 Warsaw, Poland
Logo of the marketing authorisation holder

Manufacturer

Merck Healthcare KGaA
Frankfurter Strasse 250
64293 Darmstadt, Germany

Date of last revision of the leaflet: August 2022

  • Country of registration
  • Prescription required
    Yes
  • Manufacturer
  • Importer
    Merck Healthcare KGaA
  • Alternatives to Iodid 100
    Dosage form: Tablets, 25 mcg
    Active substance: levothyroxine sodium
    Prescription required
    Dosage form: Tablets, 50 mcg
    Active substance: levothyroxine sodium
    Prescription required
    Dosage form: Tablets, 75 mcg
    Active substance: levothyroxine sodium
    Prescription required

Alternatives to Iodid 100 in other countries

The best alternatives with the same active ingredient and therapeutic effect.

Alternative to Iodid 100 in Ukraine

Dosage form: tablets, 200 mcg
Manufacturer: BERLIN-HEMI AG
Prescription not required
Dosage form: tablets, tablets 100 mcg
Manufacturer: BERLIN-HEMI AG
Prescription not required
Dosage form: tablets, 200 mcg
Manufacturer: AT "Farmak
Prescription not required
Dosage form: tablets, 100 mcg
Manufacturer: AT "Farmak
Prescription not required
Dosage form: tablets, 200 mcg
Prescription not required
Dosage form: tablets, 100 mcg
Prescription not required

Alternative to Iodid 100 in Spain

Dosage form: TABLET, 400 mcg / 2 mcg / 200 mcg
Prescription required
Dosage form: TABLET, 200 mcg/400 mcg/2 mcg
Manufacturer: Italfarmaco S.A.
Prescription required

Online doctors for Iodid 100

Discuss dosage, side effects, interactions, contraindications, and prescription renewal for Iodid 100 – subject to medical assessment and local rules.

5.0(7)
Doctor

Tarek Agami

General medicine10 years of experience

Dr. Tarek Agami is a general practitioner registered in both Portugal and Israel, with broad experience in family and preventive medicine. He offers online consultations for adults and children, providing personalised support for primary care needs, chronic disease management, and everyday health concerns.

Dr. Agami received clinical training and worked in leading medical institutions in Israel (Kaplan Medical Center, Barzilai Medical Center, Wolfson Medical Center) and Portugal (European Healthcare City, Viscura Internacional, Hospital Dr. José Maria Grande, Hospital Vila Franca de Xira). His approach combines international medical standards with individualised attention to each patient.

Main areas of consultation:

  • Diagnosis and treatment of acute and chronic conditions (high blood pressure, diabetes, respiratory infections, cardiovascular symptoms)
  • Evaluation of symptoms and guidance on further diagnostic testing
  • Preventive check-ups and regular health monitoring
  • Medical support during travel or after relocation
  • Treatment adjustments and lifestyle recommendations based on your personal history
Dr. Agami provides medical support for patients using GLP-1 medications (such as Ozempic or Mounjaro) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Portugal and Israel.

Dr. Agami is committed to evidence-based, patient-centred care, ensuring that each person receives trusted medical support tailored to their health goals.

CameraBook a video appointment
€69
Today11:10
Today11:35
Today12:00
Today12:25
Today12:50
More times
0.0(0)
Doctor

Abdullah Alhasan

General medicine10 years of experience

Dr. Abdullah Alhasan is a physician specialising in cardiology and general medicine, with international clinical experience and a commitment to evidence-based care. He offers online consultations for adults, focusing on both acute symptoms and long-term health management.

Main areas of consultation:

  • Chest pain, shortness of breath, heart palpitations, high blood pressure
  • Hypertension control and cardiovascular disease prevention
  • Interpretation of ECG, blood tests, and Holter monitor results
  • Management of heart failure and coronary artery disease
  • General medical issues: infections, fever, fatigue, gastrointestinal symptoms
  • Guidance on diagnostics, treatment plans, and medication adjustments
Dr. Alhasan’s approach is based on thorough assessment, clear communication, and personalised care – helping patients understand their health and make informed decisions about their treatment.
CameraBook a video appointment
€69
Today11:10
Today11:25
Today11:40
Today11:55
Today12:10
More times
5.0(46)
Doctor

Nuno Tavares Lopes

Family medicine17 years of experience

Dr. Nuno Tavares Lopes is a licensed physician in Portugal with 17 years of experience in emergency medicine, family and general practice, and public health. He is the Director of Medical and Public Health Services at an international healthcare network and serves as an external consultant for the WHO and ECDC.

  • Emergency care: infections, fever, chest/abdominal pain, minor injuries, paediatric emergencies
  • Family medicine: hypertension, diabetes, cholesterol, chronic disease management
  • Travel medicine: pre-travel advice, vaccinations, fit-to-fly certificates, travel-related illnesses
  • Sexual and reproductive health: PrEP, STD prevention, counselling, treatment
  • Weight management and wellness: personalised weight loss programmes, lifestyle guidance
  • Skin and ENT issues: acne, eczema, allergies, rashes, sore throat, sinusitis
  • Pain management: acute and chronic pain, post-surgical care
  • Public health: prevention, health screenings, long-term monitoring
  • Sick leave (Baixa médica) connected to Segurança Social in Portugal
  • IMT medical certificates for driving licence exchange
Dr. Nuno Tavares Lopes provides medical support for patients using GLP-1 medications (Mounjaro, Wegovy, Ozempic, Rybelsus) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Europe.

Dr. Lopes also provides interpretation of medical tests, follow-up care for complex patients, and multilingual support. Whether for urgent concerns or long-term care, he helps patients act with clarity and confidence.

CameraBook a video appointment
€59
Today11:10
Today11:30
Today11:50
Today12:10
Today12:30
More times
5.0(11)
Doctor

Duarte Meneses

Family medicine4 years of experience

Dr. Duarte Meneses is a licensed family medicine and general practice doctor based in Portugal, with additional expertise in occupational health. He provides online consultations for adults, offering medical support for both acute symptoms and chronic health conditions.

  • Common symptoms such as fever, sore throat, cough, fatigue, or digestive issues
  • Chronic conditions including hypertension, diabetes, high cholesterol, and thyroid problems
  • Mental health concerns such as stress, sleep issues, anxiety, and burnout
  • Preventive care: health check-ups, lifestyle advice, and follow-up for existing conditions
  • Work-related health questions, sick leave documentation, and medical guidance for returning to work
Dr. Meneses graduated from the University of Beira Interior and has years of experience working with diverse patient populations. He is fluent in Portuguese, English, Spanish, and French.

His approach is friendly, clear, and focused on delivering practical medical advice tailored to each patient’s needs.

CameraBook a video appointment
€65
Today11:10
Today11:35
Today12:00
Today12:25
Today12:50
More times
5.0(6)
Doctor

Svetlana Kovalenko

Family medicine14 years of experience

Dr Svetlana Kovalenko is a family medicine doctor with over 14 years of experience and a medical degree from Kharkiv National Medical University. She offers online consultations for adults, supporting patients with both acute and chronic conditions, preventive care, and personalised medical advice.

What patients commonly consult her for:

  • High blood pressure, type 2 diabetes, cholesterol management
  • Cold and flu symptoms: fever, cough, sore throat
  • Fatigue, sleep problems, headaches, general discomfort
  • Ongoing care for chronic conditions and medication review
  • Help interpreting test results and lab reports
  • Preventive check-ups and advice on healthy lifestyle habits

Dr Kovalenko combines evidence-based practice with a respectful, patient-centred approach. She takes time to explain, listens attentively, and helps each person make confident, informed decisions about their health.

CameraBook a video appointment
€55
Today11:10
Today11:35
Today12:00
Today12:25
Today12:50
More times
5.0(2)
Doctor

Ngozi Precious Okwuosa

General medicine5 years of experience

Dr. Ngozi Precious Okwuosa is a Primary Care Physician with over 5 years of clinical experience in Hungary, Sweden, and Nigeria. A graduate of the University of Szeged (cum laude), she offers online consultations for adults in the areas of internal medicine, women’s health, and postoperative care.

Key areas of consultation:

  • Preventive and family medicine
  • Women’s health, including gynaecology and obstetrics
  • Chronic disease management: hypertension, diabetes, and more
  • Mental health support, anxiety, and counselling
  • Postoperative care and lab test interpretation
She has conducted research on the genetic background of stroke and is skilled in communicating with patients from diverse cultural backgrounds. Her approach combines clinical expertise with empathy and clear communication.
CameraBook a video appointment
€50
Today11:10
Today12:00
Today12:50
Today13:40
Today14:30
More times
0.0(4)
Doctor

Karina Travkina

Otolaryngology (ENT)16 years of experience

Dr Karina Travkina is an ENT specialist providing online consultations for adults with acute and chronic conditions affecting the ears, nose and throat. She takes a structured and personalised approach to each consultation, beginning with a thorough review of symptoms and medical history, followed by diagnostic interpretation and a tailored treatment plan.

Common reasons for consultation include:

  • chronic pharyngitis and recurrent tonsillitis
  • allergic, vasomotor and medication-induced rhinitis
  • sinusitis, nasal obstruction, and postnasal drip
  • nosebleeds, earwax build-up, or foreign bodies in the ear, nose, or throat
  • Eustachian tube dysfunction and related complaints
Dr Travkina follows evidence-based guidelines and ensures patients receive clear explanations and follow-up recommendations. Whether you need help with ENT symptoms, clarification of test results, or guidance on next steps – she offers expert medical advice in a convenient online format.
CameraBook a video appointment
€64
Today11:25
Today11:55
Today12:25
Today12:55
Today13:25
More times
5.0(3)
Doctor

Roman Raevskii

General medicine6 years of experience

Dr. Roman Raevskii is a licensed general practitioner in Spain, offering online medical consultations with a strong focus on prevention, early diagnosis, and personalized care. He combines evidence-based clinical expertise with a patient-centered approach to deliver comprehensive support.

Dr. Raevskii provides medical care in the following areas:

  • Diagnosis and management of common conditions: hypertension, diabetes, respiratory and digestive disorders.
  • Oncological consultations: early cancer detection, risk evaluation, and treatment navigation.
  • Supportive care for oncology patients – pain control, symptom relief, and side effect management.
  • Preventive medicine and health screenings.
  • Development of tailored treatment plans based on clinical guidelines.

With a patient-centred approach, Dr. Raevskii helps individuals manage both chronic illnesses and complex oncological cases. His consultations are guided by current medical standards and adapted to each patient’s needs.

CameraBook a video appointment
€50
Today11:25
Today12:10
Today12:55
Today13:40
Today14:25
More times
5.0(30)
Doctor

Sergio Correa

General medicine7 years of experience

Dr. Sergio Correa is a licensed general practitioner, aesthetic medicine specialist, and trichologist with experience in emergency care and preventive health. He offers online consultations in English and Spanish, supporting adult patients with a wide range of medical concerns – from acute symptoms to chronic condition management.

His areas of focus include:

  • General and urgent care: fever, fatigue, infections, digestive issues, respiratory symptoms, and other common concerns
  • Chronic condition support: hypertension, high cholesterol, diabetes, thyroid issues
  • Aesthetic medicine and dermatology: acne, skin ageing, hyperpigmentation, personalised skincare guidance
  • Trichology: hair loss, scalp conditions, treatment strategies for men and women
  • Preventive care: health check-ups, lifestyle advice, second opinions

Dr. Correa combines medical knowledge with an aesthetic and holistic approach to help patients improve both health and quality of life.

CameraBook a video appointment
€40
Today11:25
Today12:25
Today13:25
Today14:25
Today15:25
More times
5.0(8)
Doctor

Anastasiia Shalko

Family medicine12 years of experience

Dr. Anastasiia Shalko is a general practitioner with a background in both paediatrics and general medicine. She graduated from Bogomolets National Medical University in Kyiv and completed her paediatric internship at the P.L. Shupyk National Medical Academy of Postgraduate Education. After working as a paediatrician in Kyiv, she relocated to Spain, where she has been practising general medicine since 2015, providing care for both adults and children.

Her work focuses on urgent, short-term medical concerns – situations where patients need quick guidance, symptom assessment and clear next steps. She helps people understand whether their symptoms require in-person evaluation, home management or a change in treatment. Common reasons for booking an online consultation include:

  • acute respiratory symptoms (cough, sore throat, runny nose, fever)
  • viral illnesses such as colds and seasonal infections
  • gastrointestinal complaints (nausea, diarrhoea, abdominal pain, gastroenteritis)
  • sudden changes in how a child or adult feels
  • questions about existing treatment and whether adjustments are needed
  • renewal of prescriptions when clinically appropriate
Dr. Shalko works specifically with urgent and short-term problems, providing practical recommendations and helping patients determine the safest next step. She explains symptoms clearly, guides patients through decision-making and offers straightforward medical advice for everyday acute issues.

She does not provide long-term management of chronic conditions, ongoing follow-up or comprehensive care plans for complex long-term illnesses. Her consultations are designed for acute symptoms, sudden concerns and situations where timely medical input is important.

With clinical experience in both paediatrics and general medicine, Dr. Shalko confidently supports adults and children. Her communication style is clear, simple and reassuring, helping patients feel informed and supported throughout the consultation.

CameraBook a video appointment
€50
Today11:25
Today11:55
Today12:25
Today12:55
Today13:25
More times

Get updates and exclusive offers

Be the first to know about new services, marketplace updates, and subscriber-only promos.

Follow us on social media
FacebookInstagram
Logo
Oladoctor
Find a doctor
Doctors by specialty
Services
Choose language
© 2025 Oladoctor. All rights reserved.
VisaMastercardStripe