Underactive thyroid

Underactive thyroid, also known as hypothyroidism, is a condition where the thyroid gland does not produce enough of the thyroxine hormone in the body.

  1. Can cause fatigue and weight fluctuations
  2. Left untreated can lead to complications
  3. Medicated with hormone replacement

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1 treatment(s) for Underactive thyroid



  1. Effective thyroxine replacement
  2. Reduces symptoms such as tiredness
  3. Simple tablet or oral solution
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Underactive thyroid is a condition which affects around one in 1,000 men and 15 in 1,000 women in the UK, according to the NHS. It is characterised by a low production of thyroxine by the thyroid gland, which can cause a range of symptoms including fatigue, weight gain and muscle cramps.

The condition, also known as hypothyroidism or thyroid hormone deficiency, is thought to be the result of the immune system wrongly attacking the thyroid gland. This causes it to produce less thyroxine, a hormone the body needs to help it convert fat into energy. When levels of this hormone fall, the body’s faculties consequently slow down, and this can lead to symptoms such as lethargy, dry skin, sensitivity to cold, muscle aches and cramps, loss of libido, irregular periods, or constipation.

When the condition is not treated, it can also lead to more serious symptoms and complications. These may include goitre, a condition where the thyroid swells and forms a visible lump around the throat, or myxoedema coma. It can also cause heart problems and cardiovascular illness, due to the slower rate at which the body metabolises fat.

Diagnosis is carried out via a blood test. Through this, a doctor can measure how much of the hormone is present in the blood.

Levothyroxine is a common treatment for underactive thyroid. It contains a synthetic version of the hormone the thyroid produces, and helps to supplement levels in those where production of this hormone is low. This helps to offset the symptoms of hypothyroidism.

After a starting dose of this drug has been issued, a doctor will usually continue to undertake blood tests at certain intervals in order to monitor the levels of thyroxine in the patient’s body. This will help them to determine an appropriate maintenance dose.

To buy this effective treatment online for underactive thyroid, simply take our medical questionnaire. Your responses will be assessed by a registered practitioner, who will only issue a prescription if it is safe. Following approval, items are then dispensed at our UK-based pharmacy before being shipped by next-day tracked delivery.

Levothyroxine is the most typical treatment for underactive thyroid. It is a generic medicine made by a number of different manufacturers, including Actavis. Given in tablet form, this drug is available in 50 or 100 microgram doses.

How do they work?

These tablets work by supplementing the hormone which is being underproduced by the thyroid gland, thyroxine. In doing so, it helps to prevent symptoms which result from a deficit of this hormone, which plays a vital part in the process of energy conversion in the body.

What are the side effects?

Several side effects have been associated with the use of this medicine although not everyone will get them. These include (but are not limited to) headache, flushing and weight loss.

Can I take them with other medications?

It depends which other treatments you are using. There are many possible contraindications listed in the clinical information for this item, so you should let your doctor know about any other prescription, non-prescription or remedial items you are taking during consultation.

What’s the difference between the medications?

Even though it is manufactured by several different companies due to its generic status, Levothyroxine is the main ingredients and therefore performs the same function.

Should I take Levothyroxine?

It depends on whether or not your doctor thinks it is suitable. Let your prescriber know about any medical conditions you have during consultation. There are a range of health factors to consider, and you can find out more about these on the product information page.

Are there different side effects?

The side effects associated with Levothyroxine are the same, no matter which pharmaceutical company makes it, as it is subject to the same manufacturing conditions. You can find out more about side effects on the product page.

Is it right for me?

Take our medical questionnaire to find out. Once complete, one of our qualified physicians will assess your responses and issue a prescription if the treatment is safe for you to use. This prescription will then be fulfilled at our UK-based pharmacy before being shipped direct to your door via next-day express parcel.

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