Levothyroxine is a synthetic version of the naturally-occurring thyroid hormone thyroxine, often abbreviated as T4.

Levothyroxine is most commonly used to treat hypothyroidism, or thyroid hormone deficiency, in which the thyroid is unable to produce sufficient amounts of thyroxine on its own due to abnormalities, injury, or as a side effect of other medications. It replaces the hormone in the body, reversing symptoms of hypothyroidism. The medication does not cause the thyroid to increase thyroxine production, so symptoms will likely return if treatment stops unless the cause has been addressed separately.

Patients also buy levothyroxine to treat goiter, particularly when the goiter is caused by thyroid hormone deficiency, but also in some other cases. If treatment is successful it eliminates the need for surgical intervention.

This medication is sold under a variety of brand names around the world, including Synthroid, Letrox, Levaxin, Thyrax, Thyrox, Levoxyl, Tirosint and Thyrin, among others. It is also possible to buy levothyroxine as a generic.

Using Levothyroxine

The hormones produced by the thyroid are crucial for a range of body functions. Symptoms of an underactive thyroid typically start out mild, so the condition may not be diagnosed for several years. If left completely untreated the condition can be fatal. Early symptoms include:

• Chronic fatigue
• Thinning hair
• Memory loss
• Increased cold sensitivity
• Weight gain
• Weakness
• Muscle or joint aches
• Increased cholesterol
• Decreased heart rate
• Excessively dry skin
• Chronic constipation
• Hoarseness
• Puffiness in face
• Delayed puberty

Levothyroxine can reverse the symptoms of hypothyroidism, but it is a potent and relatively complicated medication which must be used with care. Regular doctor exams are crucial during treatment to ensure the medication is working properly and that no adverse effects are developing. Misuse of levothyroxine can lead to potentially fatal complications.

The majority of patients diagnosed with an underactive thyroid are women over 60 years of age, but the condition can impact anyone of any age or gender. Age, along with other factors such as weight, diet, other medical conditions and other medications being taken, will all influence dosage.

A rough outline of what patients can expect from treatment is as follows:

• A doctor should determine daily dosage; in otherwise healthy adults, typically 1.7 mcg of levothyroxine per kg of weight.
• Daily doses are taken once per day on an empty stomach; typically in the morning 30 to 60 minutes before breakfast.
• Tablets may be crushed and mixed with water if needed. Do not mix with foods or any fluid other than water.
• Patients may need to wait up to 4 hours before consuming certain foods, vitamins, supplements, or other medications.

It may take 4 to 6 weeks of treatment before improvements are noticeable. If the underlying cause of hypothyroidism is not addressed, the medication may be taken for the remainder of life.

Important information Before you Buy Levothyroxine

Patients planning to buy levothyroxine should be aware that the various products are not always interchangeable; that is, switching brand names, generic brands, or switching from brand-name to generic products (or vice versa), may cause complications even if the dosage on the packaging is the same. This is because the various formulations may be absorbed differently, which may increase or reduce the amount of medication in the body.

For best results, learn the brand and manufacturer of the levothyroxine being taken and stick to it. If a switch is necessary, inform your doctor; testing will likely be increased for a short time to ensure the new formulation is working well. Dosage adjustments may be required.

How to Buy Levothyroxine at Kiwi Drug

Clients who do not currently have a prescription to buy levothyroxine may be issued one through our online doctor. You will simply need to answer a few additional questions during checkout.

As with all our products, we guarantee your levothyroxine will be 100% authentic, produced by a licensed, authorized manufacturer. Click on the medication of interest for more information about a particular product.