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What is Synthroid used for?

Synthroid (levothyroxine) is a thyroid medicine that replaces a hormone normally produced by your thyroid gland to regulate the body's energy and metabolism. Levothyroxine is given when your thyroid does not produce enough of this hormone on its own. Synthroid is also used to treat or prevent goiter (enlarged thyroid gland), which can be caused by hormone imbalances, radiation treatment, surgery, or cancer.

You can buy Synthroid (levothyroxine) from our Canadian Pharmacy. We currently do not have the Levothyroxine generic available.

How does Synthroid work?

Synthroid comes as a tablet for oral administration and contains the active ingredient Levothyroxine. You can buy Synthroid (levothyroxine) in the following 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. The Levothyroxine dosage in the medication works by providing or replacing the thyroid hormone that your thyroid gland would produce if it were working normally.

Before taking your prescribed medication read all the instructions that was provided by your pharmacist. Take Synthroid orally once a day on a empty stomach with water. This medication should be take roughly an hour before breakfast.

Make sure you take the Levothyroxine dosage at the same time each day to create a routine for yourself and to ensure an even spread of medication in your system. To have optimal results take Synthroid on a regular basis . Do not change or increase your dose. You should continue taking this medication even if you feel well. This medication is taken whole and should not be crushed or broken apart. 


This medication may contain medical and non medical ingredients that could cause an allergic reaction. Consult with your doctor about any known allergies before taking your prescribed Synthroid dosage. Speak with your doctor about any known medical conditions relating to history of increased thyroid hormones, decreased adrenal glad function, heart disease, high blood pressure, and diabetes. Tell your doctor about any current medications or supplementation to avoid interactions with Synthroid.

You should check your blood sugar levels regularly if you have diabetes. This medication may make it more challenging to control your blood sugar levels.

Side Effects

Synthroid side effects include:

Hot flashes, sensitivity to heat, sweating, headache, nervousness, irritability, nausea, sleep problems (insomnia), changes in appetite or changes in weight, changes in menstrual periods, and temporary hair loss.

If any side effects of Levothyroxine become unmanageable speak with your doctor or pharmacist for help in managing these mentioned side effects. For any serious side effects that occur speak with your doctor right away for further treatment options.


What is Synthroid?

Synthroid is a thyroid medication containing a man-made hormone (levothyroxine) which replicates a natural hormone found in the thyroid, called thyroxine. Synthroid is used to treat hypothyroidism, a condition characterized by low levels of thyroxine.

This form of Synthroid is an oral tablet which comes in a variety of colors, each color representing the dose strength. If you purchase a generic alternative to Synthroid, the tablets may have a different color scheme, and may also differ in shape and packaging.

How to take Synthroid?

The best way to take Synthroid is on an empty stomach at the same time each day. Synthroid should be swallowed as a whole tablet and taken with water only.

When to take Synthroid?

For the best results, take your Synthroid dose in the morning, at least 30-60 minutes before breakfast. It is important to know when to take Synthroid as it can factor into the effectiveness of the drug.

How much does Synthroid cost?

In the United States, the price of Synthroid varies depending on each individual pharmacy and the quantity and strength of Synthroid needed. Buying Synthroid is more affordable from a certified online Canadian Pharmacy.

How long after eating can I take Synthroid?

If you have just eaten, you should wait at least 30 minutes before taking your Synthroid dose, however, it is ideal to wait an hour. Taking your dose too soon after eating can cause a decrease in absorption which leads to a decrease in effectiveness.

What are the side effects of too much Synthroid?

You may have taken too much Synthroid if you find yourself with overdose symptoms such as headaches, leg cramps, tremors, feeling nervous or irritable, chest pain, shortness of breath, and fast or pounding heartbeats.

How long does it take for Synthroid to work?

It could take up to several weeks before you notice the effects of Synthroid. The needs of your thyroid hormones are precise, and because of this, your doctor will need to test your TSH (thyroid-stimulating hormone) every 6-8 weeks. Your doctor may also need to change your dose once or twice before finding the most effective dosage to treat your condition.

What is the difference between Synthroid and levothyroxine?

Synthroid is levothyroxine. Levothyroxine is the active ingredient found inside Synthroid, which can also be found in other name brand medications such as Levoxyl and Levothroid; levothyroxine is what makes Synthroid effective.

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