Eltroxin® Tablets for Hypothyroidism

Eltroxin® is a levothyroxine tablet used to treat underactive thyroid. It replaces the body’s missing thyroid hormone so your levels return toward normal. You can access Canadian pricing with US delivery from Canada, which may help if you pay cash without insurance.

Border Free Health connects U.S. patients with licensed Canadian partner pharmacies; prescriptions are verified with prescribers before dispensing.

What Eltroxin Is and How It Works

Eltroxin® contains levothyroxine sodium, a synthetic form of thyroxine (T4). After you swallow a tablet, T4 is converted in tissues to triiodothyronine (T3), the active hormone. This hormone influences metabolism, growth, heart function, and body temperature. Restoring consistent hormone levels can help improve energy, mood, and concentration that are often reduced in hypothyroidism. In some cases, clinicians also use this therapy to suppress thyroid-stimulating hormone (TSH), such as after certain thyroid cancer treatments.

Absorption can be reduced by food and some supplements. Taking your tablet the same way every day supports stable levels. Because this is a narrow-therapeutic-index medicine, your prescriber will use lab results and symptoms to adjust dosing.

Who It’s For

This treatment is indicated for primary, secondary, or tertiary hypothyroidism in adults and children, and to help suppress TSH in specific thyroid cancer settings. It should not be used to treat obesity or for weight loss. People with uncorrected adrenal insufficiency or untreated thyrotoxicosis should avoid levothyroxine until those conditions are managed. Those with significant heart disease, recent heart attack, or arrhythmias require careful monitoring.

If you are navigating Hypothyroidism, talk with your healthcare professional to confirm this class is appropriate and to plan your monitoring schedule.

Dosage and Usage

Dosing is individualized. Many adults take a once-daily dose on an empty stomach, ideally 30 to 60 minutes before breakfast, with water. Consistency matters: take it at the same time and separate from calcium, iron, antacids, or multivitamins by at least four hours. Your prescriber will adjust based on TSH and free T4 results and how you feel. An example strength sometimes used for titration is Eltroxin 50 mcg, but your exact dose may differ. For infants or those who cannot swallow tablets, a crushed tablet may be mixed with a small amount of water and given immediately.

If your regimen changes, your clinician will typically recheck labs after a period to confirm the new dose suits your needs. Avoid making changes without medical guidance.

Strengths and Forms

Tablets are available in a range of strengths to match dosing needs. Availability can vary by lot and origin. Commonly published options include:

• 25 mcg, 50 mcg, 75 mcg
• 88 mcg, 100 mcg, 112 mcg
• Eltroxin 125 mcg tablets
• 150 mcg, 200 mcg

Color and imprint differ by strength and manufacturer. Availability may vary. Your prescriber may request a specific strength to simplify your regimen or reduce tablet splitting.

Missed Dose and Timing

If you miss a dose, take it when you remember the same day. If it is close to your next dose, skip the missed tablet and continue your regular schedule. Do not double up. Try setting a daily reminder to keep a steady routine. If you travel across time zones, aim for roughly the same interval between doses until back on your normal timetable.

Storage and Travel Basics

Store tablets at room temperature, away from excess heat, moisture, and light. Keep the bottle closed and out of reach of children. Do not store in the bathroom. When traveling, carry your supply in original packaging with a copy of your prescription. Place it in your carry-on, not checked luggage. If your trip includes significant time changes, ask your prescriber how to adjust dosing time during travel. Our partners use temperature-controlled handling when required.

Benefits

Thyroid hormone replacement can help normalize TSH and free T4, which may improve energy, cognitive function, skin and hair changes, and bowel regularity. Once-daily dosing supports adherence. The wide range of strengths allows fine dose adjustments. Consistent therapy may support long-term heart and bone health when dosed appropriately and monitored as recommended.

Side Effects and Safety

• Common effects: headache, irritability, nervousness
• Sleep difficulty or tremor
• Palpitations or faster heartbeat
• Heat intolerance or sweating
• Diarrhea or abdominal discomfort
• Temporary hair loss, especially early in treatment

Too much thyroid hormone can cause symptoms of hyperthyroidism, such as chest pain, rapid heartbeat, shortness of breath, or severe anxiety. Rarely, allergic reactions to inactive ingredients can occur. People with heart disease may have increased risk of rhythm changes or angina if dosing is excessive. Seek urgent care for chest pain, fainting, or severe shortness of breath.

Drug Interactions and Cautions

Absorption can be reduced by calcium carbonate, iron salts, aluminum- or magnesium-containing antacids, bile acid sequestrants, orlistat, and some phosphate binders. Space these by at least four hours. Proton pump inhibitors and sucralfate may interfere. Enzyme inducers like carbamazepine, phenytoin, or rifampin can increase hormone needs. Warfarin sensitivity can rise as thyroid status normalizes; clinicians often monitor INR. Diabetes medicines may require adjustments. Tell your prescriber about all medicines, vitamins, and supplements you take.

Use with caution in cardiovascular disease. Dosing needs may change during pregnancy; monitoring usually becomes more frequent. Levothyroxine is generally compatible with breastfeeding.

What to Expect Over Time

Most people will not feel an immediate change after starting therapy. As your levels stabilize, you may notice gradual improvement in energy, mood, and temperature tolerance. Your prescriber will use TSH and free T4 to fine-tune dosing. Because symptoms can overlap with other conditions, continue follow-up even if you feel better. Set reminders to take your tablet at the same time each day. Consistency with meals, supplements, and timing supports reliable results.

For structured guidance on daily routines with thyroid hormone, you can also review our practical article How To Take Synthroid.

Compare With Alternatives

Other options may fit certain needs. Brand levothyroxine like Synthroid offers similar active ingredient with brand-specific excipients. Liothyronine (T3), such as Cytomel, may be used in select cases or combined with T4 under specialist care. Some patients use different manufacturers of levothyroxine to address excipient sensitivities. Discuss the best match for your situation with your clinician.

Pricing and Access

We offer Canadian pricing on this medicine with convenient US fulfilment. Check the current Eltroxin price and compare strengths before you place your order. Ships from Canada to US with transparent checkout; payment is processed in a secure, encrypted environment. For broader browsing, see our Endocrine Thyroid category.

For diet-related tips while on levothyroxine, see Foods To Avoid Synthroid.

Availability and Substitutions

Stock can vary by strength. If a specific presentation is unavailable, your prescriber may recommend a therapeutically equivalent alternative or temporary strength combination. Order Eltroxin from Canada once your prescription is confirmed, or consider a comparable generic manufacturer when appropriate. For an additional levothyroxine option, review Apo Levothyroxine with your clinician.

Patient Suitability and Cost-Saving Tips

Many adults, adolescents, and children with confirmed hypothyroidism are candidates. It is not appropriate for weight loss. People with recent cardiac events or significant arrhythmias should be closely supervised. To reduce costs, ask your prescriber about multi-month supplies if stable on a dose, and set refill reminders so you do not miss therapy. Some patients manage expenses as Eltroxin pay out of pocket; comparing strengths and tablet counts can also help control costs. If switching manufacturers, retesting may be advised after the change.

Questions to Ask Your Clinician

• Starting dose plan: how will my dose be chosen and adjusted?
• Timing strategy: morning before food or consistent bedtime use?
• Supplement spacing: how to handle calcium, iron, and antacids?
• Monitoring: how often should TSH and free T4 be checked?
• Brand changes: what steps if I change manufacturers?
• Pregnancy: how should dosing be managed before and during pregnancy?
• Symptoms: which signs suggest over- or under-replacement?

Authoritative Sources

Aspen Pharmacare Canada | DailyMed Levothyroxine | Health Canada DPD

Ready to proceed? You can place your order with prompt, express shipping and US shipping from Canada. This page provides general information and is not a substitute for medical advice from your prescriber.