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Levothyroxine Sodium
Synthroid 137mcg Tablet
Levothyroxine Sodium
Levothyroxine Sodium
Levothyroxine Sodium
Levothyroxine Sodium

Purpose of Synthroid

Synthroids are thyroid drugs that replace hormones normally produced by the thyroid gland to regulate the body’s energy and metabolism.


Uses of Synthroid

Levothyroxine is used to treat hypothyroidism (hypothyroidism). It replaces or provides thyroid hormones normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally, or when the thyroid gland is damaged by radiation/drugs or removed by surgery. Important for maintaining normal mental and physical activity. In children, an adequate supply of thyroid hormones is critical for normal mental and physical development. This drug is also used to treat other types of thyroid disorders (such as thyroid cancer). This drug should not be used to treat infertility unless it is caused by low thyroid hormone levels.



How do you use Synthroid

Take as directed by your doctor, usually once daily on an empty stomach, 30 minutes to 1 hour before breakfast. Take this medicine with a full glass of water unless directed by your doctor.


If you are taking capsules of this medicine, swallow them whole. Do not crack, crush or chew. People who cannot swallow whole capsules (infants, etc.) should take the medicine in tablet form. For infants who cannot swallow the entire tablet, crush the tablet, mix it with 1-2 teaspoons (5-10 ml) of water, and swallow immediately with a spoon or dropper. Do not prepare stocks or mix tablets with soy formula. For more information, please contact your pharmacist.


Synthroid Dosage

Synthroid is administered once daily on an empty stomach 30 minutes to 1 hour before breakfast.


 Administer Synthroid at least 4 hours before or 4 hours after drugs known to interfere with SYNTHROID absorption


Synthroid Side Effects

Hair loss may occur in the first few months of treatment. This effect is usually temporary as your body adapts to this medicine.


  • Increased sweating
  • Sensitivity to heat
  • Mental/mood changes (such as nervousness, and mood swings)
  • Tiredness
  • Diarrhea
  • Shaking (tremor)
  • Headache
  • Shortness of breath
  • Bone pain
  • Easily broken bones

If any of these side effects persist or worsen, tell your doctor or pharmacist immediately.


Synthroid Storage
Store Synthroid tablets below 25°C and away from light and moisture. Do not store Synthroid or other medicines near bathrooms or sinks. Do not leave it near a window or inside a car. Heat and humidity can destroy some medicines.


About USH

Although USA Script Helpers is not covered by Medicare, USA Script Helpers offers medical expense reports that you may submit to your local insurance companies. Should you be reimbursed that is separate from us. USA Script Helpers makes it easy to buy Canadian medicine online. USA Script Helpers also offers the best-priced* guaranteed for all medications. For more information, call us at 1 (888) 646-7749.

ATTENTION REQUIRED: All customer support calls and chats will be with English Reps. Should you require additional assistance in Spanish please send us an email to a member of our chat team and email support will send you emails in Spanish.

SHIPPING ADVISORY: Please be advised that due to Covid-19, Canada Post and USPS have both removed their shipping guarantee. Therefore, orders may take 7-10 business days to receive. Please be sure to place your order sooner rather than later. Should you not receive your medication within the quoted time please do not hesitate to give us a call at our toll free number 1-888-646-7749 to speak to a member of our customer support team. Thank you.

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Due to Covid-19 both USPS AND CANADA POST have removed their shipping guarantees. Therefore, orders may take 7-10 business days to receive from the date shipped. We ask all new and returning customers to place their orders prior to your own personal supplies running low. Please order ahead of time. We thank you for your cooperation

3-Month Supplies

As the amount of medicine constituting a day supply depends on your doctors directions for use, different patients are permitted to order different quantities. Placing an order for more than a 3-month supply may delay your order as we will need to contact you. Contact us for assistance if your 3-month rule compliant desired quantity is not shown.


If you have any questions or would like to speak to a Pharmacist from our contracted Pharmacy department, please do not hesitate to give us a call at our toll free number: 1 (888) 646-7749.