Skip to content

Levothroid

Levothyroxine

Formulated to alleviate hormone deficiencies to support baseline metabolic activity and target systemic lethargy.

Active ingredient
Levothyroxine
Route
Oral use
Form
Tablet
Strengths
25mcg · 50mcg · 75mcg · 100mcg · 112mcg · 125mcg · 200mcg

You will receive a quality generic equivalent of Levothroid, depending on stock.

Prescription and consultation requirements for Levothroid vary by destination and are determined by the fulfilment partner.

Levothroid details

Alternative names
levothyroxine
Therapeutic class
Synthetic Thyroid Hormone
Pharmacological class
Thyroxin (T4) Analog
Contraindications
acute myocardial infarction; uncorrected adrenal insufficiency; thyrotoxicosis
Minor side effects
headache; sweating; heat intolerance
Moderate side effects
tachycardia; weight loss; nervousness
Serious side effects
severe cardiac arrhythmia, requires immediate medical attention
Dosage forms
Tablet
Administration route
Oral use
Supply category
Prescription-only medicine (POM)
Originator
Forest Laboratories
Onset Time
1–2 weeks
Duration
24–48 hours
Storage instructions
Store below 25°C. Protect from light.
Drug interactions
Calcium Carbonate; Iron Supplements; Warfarin
Age restrictions
Approved for all paediatric and adult populations.
Patient summary

formulated to alleviate hormone deficiencies to support baseline metabolic activity and target systemic lethargy.

Mechanism of action

Binds to thyroid receptors inside cell nuclei, regulating protein transcription to restore normal thyroid levels.

Pregnancy and breastfeeding

TGA Category A: Deemed highly safe and critical in pregnancy. Breastfeeding: Compatible.

What you will receive

Levothroid is the originator brand name, made by Forest Laboratories. We use it to identify the medicine and are not affiliated with Forest Laboratories.

  • The fulfilment partner confirms whether the exact brand or an equivalent containing Levothyroxine is offered.
  • The offered brand, manufacturer and dispatch location depend on the product, destination and partner warehouse.
  • Check the final product details at checkout before confirming an order.

How we compare medicine brands and generics