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General Medication Fact Sheet for Eltroxin
| Field | Information |
|---|---|
| Medication Name | Eltroxin |
| Generic Name | Levothyroxine Sodium |
| Purpose | Thyroid hormone replacement for hypothyroidism |
| Mechanism of Action | Replaces or supplements thyroxine (T4), which is converted to triiodothyronine (T3) and binds to thyroid hormone receptors to regulate metabolism. |
| Dosage Forms | Oral tablets |
| Available Strengths | 25 mcg, 50 mcg, 75 mcg, 88 mcg, 100 mcg, 112 mcg, 125 mcg, 137 mcg, 150 mcg, 175 mcg, 200 mcg, 300 mcg |
| Dosage Frequency | Once daily, typically in the morning |
| Common Side Effects | Symptoms of hyperthyroidism such as palpitations, rapid heartbeat, weight loss, anxiety, tremor, sweating |
| Serious Side Effects | Chest pain, irregular heartbeat, heart failure, seizures |
| Drug Interactions | Antacids, iron supplements, calcium supplements, sucralfate, cholestyramine, certain seizure medications (e.g., phenytoin, carbamazepine), oral contraceptives, warfarin |
| Important Notes | Take on an empty stomach, at least 30 minutes before breakfast; maintain consistent brand; regular blood tests are required to monitor thyroid hormone levels. |
| Storage | Store at room temperature away from moisture and light |
| Missed Dose | Take as soon as you remember; if it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not double the dose. |
| Alternatives | Synthroid (levothyroxine), Tirosint (levothyroxine), Cytomel (liothyronine) |
Eltroxin Alternatives
| Medication | Mechanism of Action | Notes |
|---|---|---|
| Synthroid (levothyroxine) | Synthetic T4 hormone | Most commonly prescribed brand of levothyroxine. |
| Tirosint (levothyroxine) | Synthetic T4 hormone, hypoallergenic formulation | Gel capsule formulation, may be suitable for individuals with allergies or sensitivities. |
| Cytomel (liothyronine) | Synthetic T3 hormone | May be used in combination with T4 or for patients who do not convert T4 to T3 effectively. |
| Armour Thyroid (desiccated thyroid extract) | Contains both T4 and T3 hormones | Derived from animal thyroid glands; hormone levels can vary between batches. |
Eltroxin Side Effects
| Common Side Effects | Serious Side Effects |
|---|---|
| Palpitations | Chest pain |
| Rapid heartbeat | Irregular heartbeat (arrhythmia) |
| Weight loss | Heart failure |
| Anxiety | Seizures |
| Tremor | Angina (severe chest pain) |
| Sweating | Increased intracranial pressure (children) |
| Insomnia | Osteoporosis (long-term use) |
Eltroxin Dosage Guide
| Condition | Starting Dose | Maintenance Dose | Administration Notes |
|---|---|---|---|
| Hypothyroidism (Adults) | 12.5 – 25 mcg daily | Typically 75 – 125 mcg daily, adjusted based on TSH levels | Take on an empty stomach, 30-60 minutes before breakfast. |
| Hypothyroidism (Elderly/Cardiac Disease) | 12.5 – 25 mcg daily | Lower doses may be required; adjust based on TSH levels and cardiac tolerance. | Take on an empty stomach; monitor for cardiac symptoms. |
| Congenital Hypothyroidism (Infants) | 10-15 mcg/kg/day | Adjusted based on T4 and TSH levels; requires frequent monitoring. | Crush tablet and mix with a small amount of breast milk or formula; administer immediately before feeding. |
Eltroxin Price With And Without Insurance
| Purchase Context | Estimated Price |
|---|---|
| With Insurance | $10 – $15 |
| Without Insurance (U.S.) | $15 – $50 |
| From CPS | $35 |
