Levothroid
Formulated to support thyroid function, intended to manage hypothyroidism.
- Category
- Thyroid Health
- Active ingredient
- Levothyroxine
- Supply
- Pharmacy
- Route
- Oral use
- Form
- Tablet
- Strengths
- 25 · 50mcg
Levothroid details
- Alternative names
- Eltroxin; Levothyrox; Thyronorm
- Therapeutic class
- Thyroid Hormone
- Pharmacological class
- Synthetic Thyroxine
- Contraindications
- untreated thyrotoxicosis; adrenal insufficiency
- Precautions and warnings
- monitor thyroid function tests regularly; may interact with diabetes medications
- Minor side effects
- palpitations; weight loss; tremor
- Moderate side effects
- tachycardia; anxiety; insomnia
- Dosage forms
- Tablet
- Administration route
- Oral use
- Patient summary
- Formulated to support thyroid function, intended to manage hypothyroidism.
- Supply category
- Pharmacist only, dispensed without a prescription
- Manufacturer
- AbbVie
- Onset Time
- 2–4 weeks
- Duration
- 24 hours
- Storage instructions
- Store at room temperature away from moisture.
- Drug interactions
- calcium carbonate; iron supplements; antacids
- Age restrictions
- Safe for all ages when dosed correctly.
- Pregnancy and breastfeeding
- Pregnancy: Essential during pregnancy. Breastfeeding: Generally considered safe.
Serious side effects
myocardial infarction, requires immediate medical attention; arrhythmia, requires immediate medical attention
Mechanism of action
Levothyroxine is a synthetic form of the thyroid hormone thyroxine (T4). It mimics endogenous T4, which is converted to triiodothyronine (T3) intracellularly, helping to restore normal metabolic levels in patients with deficient production.
Where this medicine is registered
- Singapore
- Hong Kong
- Thailand
- Malaysia
- Philippines
- Indonesia
- Taiwan
- South Korea
- Japan
- Australia
- New Zealand
- UAE
- South Africa
About Levothroid
Levothroid is a formulation of levothyroxine, commonly used to address hypothyroidism and thyroid-stimulating hormone suppression. The same active ingredient is also sold under names such as Eltroxin, Levothyrox, and Thyronorm. AbbVie produces this medication as a tablet in strengths of 25mcg and 50mcg.
Buying Levothroid online
Levothroid is registered across 13 markets including Taiwan, South Korea and Japan, with availability also in the UAE, Singapore and Hong Kong. It stands as one of the most ordered treatments across the region, as many patients look for consistent access to their medication when living far from a well stocked pharmacy. Generic levothyroxine, much of it produced in India, is a more affordable option than the original brand for long-term management.