- Underactive thyroid treatment
- Various strengths available
- If you have a specific brand request please advise at time of ordering
Order Levothyroxine Sodium Tablets Online
You can request to order Levothyroxine online from our UK registered online doctor and pharmacy service. We ask that you complete an online medical assessment as part of your order. Our doctors will use this assessment to make sure that it is safe and suitable to prescribe for you.
If your order is approved, a prescription is sent to our online pharmacy team. From here, your medicine will be dispensed and dispatched to your delivery address. Please note, this service is only available for patients who are currently prescribed Levothyroxine on repeat by their GP.
What is Levothyroxine?
Levothyroxine is a medicine that is used to treat an underactive thyroid (hypothyroidism). It is a prescription-only medicine and is not available over the counter. It is a commonly prescribed medicine and is the main medicine used in the treatment of an underactive thyroid.
The active ingredient is Levothyroxine sodium.
How does Levothyroxine work?
In people with an underactive thyroid gland, the thyroid does not produce enough of the hormone thyroxine. This hormone is essential for normal bodily functions like growth and metabolism. Having lower levels of thyroxine can cause symptoms like tiredness, muscle aches, weight gain, and depression.
Levothyroxine is a synthetic version of the hormone thyroxine and it works to replace the thyroxine that your thyroid gland isn’t producing. This helps to improve the symptoms of an underactive thyroid.
How to take Levothyroxine
You should take your Levothyroxine tablets exactly as your doctor has told you to. Your doctor will decide the most appropriate Levothyroxine dosage for you based on a blood test. The blood test tells your doctor what your thyroid hormone levels are. The test looks at serum TSH levels and T4 levels in the blood.
At the beginning of treatment, you may need frequent blood tests until your dose is right for you. When your dose is stable, you’ll usually have a blood test every year to monitor your dose.
You should swallow the tablets whole with water and usually your doctor will tell you to take the tablets before breakfast. It is best to take it on an empty stomach because some food or drinks can reduce the absorption of Levothyroxine.
People who take Levothyroxine usually have to take it for life.
Levothyroxine Side Effects
Most side effects that happen can happen because the dose is not quite right. Once you and your doctor have found the dose that suits you, most side effects tend to improve.
The most common side effects are symptoms that are similar to an overactive thyroid. This may happen because the dose you take is too high. These side effects include muscle cramps, headaches, nausea, tremors, and feeling restless. If you notice any of these side effects, contact your doctor because your dose may need to be changed.
Some people can have a severe reaction to high levels of thyroxine. If you notice symptoms such as a very high temperature, fast heart rate and confusion, speak to your doctor immediately.
See the patient information leaflet for further information on the side effects.
Before taking any medication, it is important to read the Patient Information Leaflet:
Other conditions and Levothyroxine
Certain people should not take Levothyroxine. This includes people who have had an allergic reaction to it (or any of the ingredients in the tablets) in the past. It is not suitable for anyone who has an overactive thyroid (hyperthyroidism). People with adrenal gland problems should also not take Levothyroxine.
The patient information leaflet contains more information. If you are unsure, speak to your doctor or pharmacist for advice.
Interactions with other medicines
A number of medicines can affect the way Levothyroxine works or vice versa. Common interacting medicines include anti-epileptic medicines, beta-blockers (for heart problems), certain medicines for high blood pressure, and corticosteroids. Some interacting medicines can still be taken with Levothyroxine but your dose may need to be adjusted.
Some people worry about hair loss as a result of this medication. The hair loss is usually a result of an underactive thyroid but the hair loss can continue for a while after starting the tablets. Hair usually regrows after you have treatment with Levothyroxine but it can take several months.
See the patient information leaflet or speak to your pharmacist if you are worried or unsure about drug interactions.
Content Reviewed: 03/02/21
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