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Euthyrox 100mcg Tablet 25s (strip) - DoctorOnCall Online Pharmacy
Euthyrox 100mcg Tablet 25s (strip) - DoctorOnCall Online Pharmacy
Euthyrox 100mcg Tablet 25s (strip) - DoctorOnCall Online Pharmacy Euthyrox 100mcg Tablet 25s (strip) - DoctorOnCall Online Pharmacy

Euthyrox 100mcg Tablet 25s (strip)

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100% Authentic
We ensure that all our pharmaceutical products including health supplements and traditional preparations are registered with the National Pharmaceutical Regulatory Authority (NPRA) Malaysia
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Term & Condition
100% Authentic
We ensure that all our pharmaceutical products including health supplements and traditional preparations are registered with the National Pharmaceutical Regulatory Authority (NPRA) Malaysia
Free Delivery on orders above RM120
Enjoy free delivery with a minimum spend of RM120 on our platform.
Same day Delivery
Only applicable if all items in your cart qualify for same-day delivery. Only registered users may qualify for same-day delivery, so sign up now!

Product Overview

Introduction of Euthyrox 100mcg Tablet 25s (strip)

Euthyrox 100mcg Tablet is a trusted prescription medicine belonging to the thyroid hormone replacement drug class, containing Levothyroxine Sodium as its active ingredient — a synthetic form of the hormone your thyroid gland naturally produces. Like many medications, it does come with some side effects you should be aware of, including heart palpitations, headaches, sweating, and sleep disturbances, particularly if the dose isn't quite right for your body. If you've been prescribed this tablet, you're probably wondering whether it's safe, how long you'll need to take it, and what to watch out for along the way — and those are all completely valid questions. The good news is that when taken correctly under medical supervision, Euthyrox is a well-established and widely used medication that millions of people around the world rely on every day. We want to make sure you feel informed and confident before you start, so read through everything below carefully.

How to Take Euthyrox 100mcg Tablet
Euthyrox 100mcg Tablet should be taken orally, once daily, preferably in the morning on an empty stomach, at least 30 minutes before eating, drinking (other than water), or taking other medications. Swallow the tablet whole with a full glass of water and try to take it at the same time each day to maintain consistent hormone levels in your body. Always follow your doctor's specific instructions, as the timing and method of administration can directly affect how well the medication works for you.

Dosage of Euthyrox 100mcg Tablet
The dosage of Euthyrox is highly individualised and determined by your doctor based on your age, weight, thyroid hormone levels, and overall health condition — the 100mcg strength is a commonly prescribed maintenance dose for adults with thyroid hormone deficiency. Your doctor may start you on a lower dose and gradually adjust it over time, so never change your dose or stop taking this medication without professional medical advice.

Shelf Life of Euthyrox 100mcg Tablet
Euthyrox 100mcg Tablet typically has a shelf life of 2 to 3 years from the date of manufacture, as indicated on the packaging. Always check the expiry date printed on the blister pack or carton before use and do not consume the tablet if it has passed its expiry date, even if it looks unchanged.

How to Store Euthyrox 100mcg Tablet

  • Store Euthyrox 100mcg Tablet at room temperature, below 25°C
  • Keep the tablets in a dry place, away from direct sunlight, heat, and moisture
  • Do not store in the bathroom or near the kitchen sink where humidity is high
  • Keep the medicine in its original packaging to protect it from light and air exposure
  • Store out of reach of children and pets at all times
  • Do not transfer tablets into a different container unless advised by your pharmacist
  • If you receive the medicine via delivery, ensure it has been stored appropriately during transit — our packaging is designed to maintain product integrity

Active Ingredient of Euthyrox 100mcg Tablet

ComponentDetails
Active IngredientLevothyroxine Sodium (L-Thyroxine)
Strength100 micrograms (mcg) per tablet
Drug ClassThyroid Hormone / Thyroid Hormone Replacement Agent
Inactive IngredientsMay include maize starch, gelatin, croscarmellose sodium, and magnesium stearate (refer to product leaflet for full excipient list)

Side Effects of Euthyrox 100mcg Tablet
Side effects are more likely to occur if the dose is too high for your body. Always inform your doctor if you experience any of the following:

Common Side Effects:

  • Heart palpitations or rapid heartbeat (tachycardia)
  • Headaches
  • Excessive sweating or feeling unusually warm
  • Difficulty sleeping (insomnia)
  • Nervousness, restlessness, or irritability
  • Tremors or shakiness of the hands
  • Increased appetite with unintended weight loss
  • Diarrhoea or loose stools

Less Common Side Effects:

  • Muscle weakness or cramps
  • Hair thinning or hair loss (usually temporary)
  • Irregular menstrual cycles in women
  • Skin flushing or rash
  • Chest discomfort or tightness
  • Shortness of breath, especially during physical activity

Rare but Serious Side Effects — Seek Immediate Medical Attention:

  • Severe chest pain or signs of a heart attack
  • Allergic reactions such as swelling of the face, lips, or throat
  • Seizures
  • Significant changes in blood pressure

⚠️ This is not a complete list of all possible side effects. Consult your doctor or pharmacist if you notice anything unusual after starting this medication.

Contraindications of Euthyrox 100mcg Tablet
Euthyrox 100mcg Tablet should not be used in the following situations:

  • Hypersensitivity to Levothyroxine Sodium or any of the tablet's inactive ingredients
  • Untreated adrenal insufficiency (underactive adrenal glands) — thyroid hormone therapy must not begin until this condition is properly managed
  • Untreated hyperthyroidism (overactive thyroid) — as this medication contains thyroid hormone, it would worsen the condition
  • Acute myocardial infarction (recent heart attack) — use is contraindicated during the acute phase
  • Acute myocarditis or pancarditis (inflammation of the heart)
  • Thyrotoxicosis of any cause, unless used in very specific clinical settings under specialist supervision

Use with Caution In (consult your doctor):

  • Patients with cardiovascular disease, including angina, arrhythmia, or hypertension
  • Elderly patients, who may be more sensitive to thyroid hormone effects
  • Patients with diabetes mellitus or diabetes insipidus — Levothyroxine can alter blood glucose levels
  • Pregnant or breastfeeding women — dosage adjustments may be required; do not stop medication without medical advice
  • Patients with osteoporosis, as long-term use may affect bone density

📌 Always disclose your full medical history and current medications to your doctor before starting Euthyrox.

Drug & Food Interactions of Euthyrox 100mcg Tablet

Drug Interactions

  • Antacids, calcium carbonate, iron supplements — Reduce absorption of Levothyroxine — take at least 4 hours apart
  • Warfarin and other anticoagulants — Levothyroxine may enhance blood-thinning effects, increasing bleeding risk
  • Antidiabetic medications (insulin, metformin) — Thyroid hormone may alter blood glucose control; dose adjustments may be needed
  • Cholestyramine, colestipol (cholesterol-lowering resins) — Significantly reduce Levothyroxine absorption
  • Rifampicin, phenytoin, carbamazepine — Increase metabolism of Levothyroxine, reducing its effectiveness
  • Sertraline and other antidepressants — May reduce the effect of Levothyroxine
  • Amiodarone (heart medication) — Can interfere with thyroid hormone metabolism
  • Oestrogen-containing medications (e.g., oral contraceptives, HRT) — May increase Levothyroxine requirements
  • Proton pump inhibitors (PPIs) — May reduce absorption of Levothyroxine

Food Interactions

  • Soy-based foods and soy milk — can interfere with Levothyroxine absorption; consume with caution and consistency
  • High-fibre foods (e.g., bran, whole grains) — may reduce absorption if consumed too close to the dose
  • Coffee — even black coffee can reduce absorption; wait at least 30–60 minutes after taking your tablet
  • Grapefruit juice — may affect how the medication is absorbed in some individuals
  • Calcium-rich foods (e.g., dairy products) — best consumed several hours after taking Levothyroxine

💡 The safest approach is to take Euthyrox first thing in the morning with plain water, and wait at least 30 minutes before eating or drinking anything else.

Quick Tips for Euthyrox 100mcg Tablet

  • Always take Euthyrox at the same time every day — consistency is key to maintaining stable thyroid hormone levels
  • Take it on an empty stomach, at least 30 minutes before your first meal or drink of the day (water is fine)
  • Never skip doses — if you miss a dose, take it as soon as you remember on the same day; do not double up the next day
  • Do not stop taking Euthyrox suddenly without consulting your doctor, even if you feel well
  • Keep all follow-up appointments — your doctor will need to monitor your thyroid levels through regular blood tests
  • Store your tablets properly — away from heat, moisture, and direct sunlight, ideally in a cool, dry place below 25°C
  • Check the expiry date on the packaging before taking each tablet
  • Inform all your healthcare providers (including dentists and specialists) that you are taking Levothyroxine
  • Do not share your medication with anyone else, even if they have similar symptoms — dosing is highly individual
  • Keep the medicine in its original blister pack until you are ready to take it, to protect it from light and moisture
  • Dispose of expired or unused tablets responsibly — do not flush them down the toilet; check with your pharmacist for safe disposal options
  • If you are pregnant or planning to become pregnant, inform your doctor immediately as your Levothyroxine dose may need to be adjusted

Frequently Asked Questions (FAQs) About Euthyrox 100mcg Tablet

Q1: Do I need a prescription to buy Euthyrox 100mcg Tablet in Malaysia?
Yes, Euthyrox 100mcg Tablet is a prescription-only medicine (POM) in Malaysia. When purchasing from our online pharmacy, you will be required to upload a valid prescription issued by a registered medical practitioner. This is a regulatory requirement to ensure your safety, and we take this responsibility seriously.

Q2: Can I buy Euthyrox 100mcg Tablet online in Malaysia?
Yes, you can purchase Euthyrox 100mcg Tablet through our licensed online pharmacy in Malaysia. We are committed to providing authentic, registered pharmaceutical products sourced through verified supply chains. Simply upload your prescription during checkout and our pharmacist team will verify it before processing your order.

Q3: How do I know the Euthyrox tablets I receive are genuine and not counterfeit?
We source all our medications exclusively from authorised distributors and registered pharmaceutical suppliers in Malaysia. Every product we carry is registered with the National Pharmaceutical Regulatory Agency (NPRA) under the Ministry of Health Malaysia. You can also verify the product registration on the NPRA BeSSeR portal for added peace of mind.

Q4: How long does delivery take for Euthyrox 100mcg Tablet within Malaysia?
We offer delivery across Peninsular Malaysia and East Malaysia (Sabah & Sarawak). Standard delivery typically takes 2 to 5 working days, while express options may be available depending on your location. All orders are carefully packed to ensure the medicine remains protected during transit.

Q5: Is it safe to order prescription medicine like Euthyrox online in Malaysia?
Absolutely — as long as you are ordering from a licensed and registered online pharmacy. Our pharmacy operates in full compliance with Malaysian pharmaceutical regulations. We have qualified pharmacists on our team who review every prescription order before dispensing, ensuring your safety is never compromised.

Q6: What should I do if my Euthyrox tablets arrive damaged or past their expiry date?
If you receive a damaged, tampered, or expired product, please contact our customer support team immediately with photos of the packaging. We take product quality extremely seriously and will arrange a replacement or refund in accordance with our returns policy. Your satisfaction and safety are our top priorities.

Q7: Can I order Euthyrox 100mcg Tablet in bulk or for a 3-month supply?
You may order a supply consistent with what your prescription allows. Our pharmacist will review your prescription and dispense accordingly. If your doctor has prescribed a longer supply, we can accommodate that. Please ensure your prescription clearly states the quantity and duration prescribed.

Q8: How will my Euthyrox tablets be packaged for delivery to ensure quality?
We use secure, discreet, and temperature-appropriate packaging for all medication orders. Euthyrox tablets are sensitive to heat and moisture, so we take extra care to ensure they are packed in a way that maintains their integrity throughout the delivery journey, especially during Malaysia's warm climate.

Q9: What payment methods are accepted when ordering Euthyrox online in Malaysia?
We accept a range of convenient payment options including online banking (FPX), credit and debit cards, and e-wallets commonly used in Malaysia. All transactions are processed through a secure, encrypted payment gateway to protect your financial information.

Q10: Can I reorder Euthyrox 100mcg Tablet easily if I'm a returning customer?
Yes! Returning customers can enjoy a streamlined reordering process through their account on our website. However, please note that a valid and current prescription is required for every order — we are unable to dispense based on an expired prescription, as this is both a legal and safety requirement. If your prescription has expired, please consult your doctor for a renewal before placing a new order.

Q11: What if I have questions about my order or the product before purchasing?
Our team of registered pharmacists is available to assist you via live chat, email, or phone during operating hours. We encourage you to reach out with any questions before placing your order — we're here to make sure you feel confident and informed every step of the way.

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Frequently Bought Together

Brands

Merck

Active Ingredient

levothyroxine 

Manufactured by

Merck Healthcare

Side Effects

As with all medications, you may experience some side effects. Not everyone experiences it. This is not a cause for concern. However, it is so that you are aware of it.

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Increased appetite, Weight loss, Sensitive to heat, Excessive sweating, Headache, Increase heartbeat, Nervousness, Anxiety, Tremors

Warning Precautions

Alcohol Warning (Safe)

Limited data on the consumption of alcohol while taking the medication, however, drinking alcohol within the guidelines while taking Euthyrox 100mcg Tablet 25s (strip) have not known to cause any adverse reactions

Pregnancy Warning (Limited Data)

Hypothyroidism in pregnant mothers should be treated. Therefore, thyroid replacement therapy should be promptly given. The doctor should adjust doses as required and monitor thyroid stimulating hormone (TSH) levels

Breastfeeding Warning (Limited Data)

Please consult your doctor if you are taking this medication while breastfeeding your baby. However, the effect of Euthyrox 100mcg Tablet 25s (strip) on the baby is contentious since it is excreted into breast milk in minimally.

Driving Warning (Generally Safe)

Euthyrox 100mcg Tablet 25s (strip) usually does not the ability to drive. Do not drive unless you are feeling well.

Kidney Warning (Safe If Prescribed)

This medication alleviates the adverse effects of hypothyroidism on the kidney and reduces the declination of renal functions in patients suffering from chronic kidney disease underlying with subclinical hypothyroidism.

Liver Warning (Limited Data)

It is metabolized in the liver so adjustment of doses may be necessary. Do consult your doctor before taking this medication.

Disclaimer

Information last updated on: Tue Apr 07 2026 03:45:39 GMT+0000 (Coordinated Universal Time) The product images shown are for illustration purposes only and may not be an exact representation of the product.

The content provided on this webpage is to provide information only, to be fully-interpreted by a medical professional, and not intended as a guide to make purchase decisions, or a substitute to advice of a medical professional. Effectiveness and side effects of medication may differ from individual to individual. We do not encourage any customer to self-diagnose and/or self-medicate. Patients should always consult a medical professional before taking or using any medication. The content provided here is non-exhaustive and may not cover all aspects of the medication. Our service should only be used to support the doctor-patient dynamic, not replace it.

The fulfilment of prescription medication is subject to our review of a prescription issued by a Malaysian Medical Council (MMC) registered doctor. If required, we will provide a tele-consult service with one of our registered panel doctors. This is not an advertisement of a medicine as such an advertisement would require prior approval from the Medicines Advertisement Board of Malaysia. Euthyrox 100mcg Tablet 25s (strip) is available in many areas in Malaysia. Kuala Lumpur, Bukit Bintang, Titiwangsa, Setiawangsa, Wangsa Maju, Kepong, Segambut, Bandar Tun Razak, Cheras, Subang Jaya, Petaling Jaya, Mont Kiara, Puchong, Bandar Sunway, TTDI, Seri Kembangan, Klang, Bukit Tinggi, Damansara, Sentul, Penang, George Town, Jelutong, Gelugor, Bayan Baru, Bandar Baru Air Itam, Sungai Ara, Bukit Mertajam, Butterworth, Perai, Johor Bahru, Skudai, Bukit Indah, Gelang Patah, Senai, Pasir Gudang, Taman Daya, Taman Molek, Taman Perling, Tebrau, Danga Bay, Larkin, Nusajaya, Pontian, Masai, Setia Tropika, Desaru, Tampoi.


Euthyrox 100mcg Tablet 25s (strip) is available at many places in Singapore. Ang Mo Kio, Alexandra, Admiralty, Bedok, Bishan, Bukit Batok, Bukit Merah, Bukit Panjang, Bukit Timah, Boat Quay, Buona Vista, Beach Road, Bugis, Balestier, Boon Lay, Central Area, Choa Chu Kang, Clementi, Chinatown, Commonwealt, City Hall, Clarke Quay, Changi Airport, Changi Village, Clementi Park, Dairy Farm, Eunos, East Coast, Farrer Park, Geylang, Hougang, Harbourfront, Holland, Jurong, Jurong East, Jurong West, Kallang/ Whampoa, Lim Chu Kang, Marine Parade, Marina, Macpherson, Mandai, Newton, Novena, Orchard, Pasir Ris, Punggol, Potong Pasir, Paya Lebar, Queenstown, Raffles Place, Rochor, River Valley, Sembawang, Sengkang, Serangoon, Serangoon Rd, Seletar, Tampines, Toa Payoh, Tanjong Pagar, Telok Blangah, Tanglin, Thomson, Tuas, Tengah, Upper East Coast, Upper Bukit Timah, Upper Thomson, Woodlands, West Coast, Yishun, Yio Chu Kang.
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