Canadian Pharmacy > Synthroid
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Synthroid (Levothyroxine)
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90 $45.00 $0.50 BUY
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Our goal is to bring you the most affordable medication. If you find a lower price advertised by another website or your local pharmacy, we’ll match that price or beat it by 10% of the difference.* Call us at 1-877-385-5040 and a member of our CareTeam will be happy to assist you.

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Synthroid is used to treat thyroid conditions, and replaces a hormone produced by the thyroid. This drug can be used to treat hypothyroidism or to prevent goiter caused by hormone imbalances, cancer, or radiation treatment.


Always follow your doctor’s instructions and use Synthroid exactly as prescribed.

  • Take on an empty stomach, at least 30 minutes before your first meal.
  • Synthroid may take several weeks to show symptom relief, and should not be discontinued unless advised by your doctor.

Synthroid is not a weight loss drug or obesity treatment. Taking it alongside appetite suppressants or weight loss drugs may be dangerous.

Before taking Synthroid, inform your doctor if you have any of the following:

  • Thyrotoxicosis
  • Heart attack symptoms
  • Adrenal gland disorders
  • Diabetes
  • Heart or kidney disease
  • Osteoporosis
  • Allergies

Low thyroid levels can be dangerous during pregnancy, but your doctor may need to change your dose if you become pregnant.

Some dietary supplements and medications interfere with Synthroid. Take other medications 4 hours before or after Synthroid.

Side Effects

Common side effects of Synthroid include:

  • Headache
  • Muscle weakness
  • Leg cramps
  • Diarrhea
  • Skin rash or hair loss
  • Tremors and nervousness

More serious side effects include:

  • Chest pain, shortness of breath, irregular heart rate
  • Hair loss, dry skin and hair
  • Fever or sweating
  • Irritability
  • Vomiting, diarrhea, appetite changes
  • Changes in menstrual period

Can I take other drugs at the same time as Synthroid?

Iron supplements (including multivitamins with iron), calcium supplements and antacids can all interfere with Synthroid. Take these 4 hours before or after Synthroid, and check with your doctor about any other medication you take.

If I get pregnant, should I stop taking Synthroid?

Hypothyroidism can lead to complications during pregnancy, including miscarriage, low birth weight, and stillbirth. Don’t stop taking Synthroid if you get pregnant, and talk to your doctor about your Synthroid dose.

IMPORTANT NOTE: The information provided on the website is intended to facilitate awareness about healthcare products and medical conditions generally but it is not a substitute for professional medical attention or advice. You should always speak with a qualified healthcare practitioner before taking any prescription or non-prescription drug.
IMPORTANT NOTE: Please note that not all medications, including any referenced on this page, are dispensed from our affiliated Canadian pharmacy. The medications in your order may be filled and shipped from an approved International fulfillment center located in a country other than Canada. In addition to dispensing medications from our Canadian pharmacy, medication orders are also filled and shipped from international fulfillment centers that are approved by the regulatory bodies from their respective countries. Medication orders are filled and shipped from approved fulfillment centers around the world including, but not limited to, Canada, Singapore, United Kingdom, New Zealand, Turkey, Mauritius, India, Australia, and the United States. The items in your order may be filled and shipped from any one of the above jurisdictions. The products are sourced from various countries including, but not limited to, Canada, United Kingdom, New Zealand, Turkey, India, Australia, and the United States. All of our affiliated fulfillment centers have been approved by the regulatory bodies from their respective countries.

A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.

What's the difference between generic drugs and brand name drugs?

What's the difference between the branded products you sell and the ones I get locally?
The branded drugs we sell are chemically and therapeutically no different from the ones you get in your local pharmacy. They both generally come from the same exact manufacturer. Generally, the main difference* is in the packaging and the price. Our packaging may be different from what you get locally, but we're also much cheaper.

* Other differences may include differences in trade name, form, and general appearance.

Why are there packaging differences?
Due to differences in government regulation, different countries have different packaging requirements. For example, a product in Canada (or any other country) will have different packaging than the same product in the US even though both drugs are chemically and therapeutically equivalent and are generally manufactured by the same exact company.

Why are your drugs so much cheaper?
Due to government price controls, medications from Canada and many other countries are often significantly cheaper than in the United States. Also, other countries may have more affordable generic versions of drugs, which may not yet be available in the US.

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