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  • Contains a synthetic version of a thyroid hormone
  • Effective for treating hypothyroidism
  • Suitable for those who can't have Levothyroxine
  • Genuine medication
  • All drugs sourced in the UK

Liothyronine is an effective medication, used to treat hypothyroidism (underactive thyroid). The thyroid gland produces hormones to control growth and energy levels, but those with an underactive thyroid do not produce the necessary amount. Liothyronine is used to replenish this.


Please note: this page is only to be used as a reference of our price for this medication. If you are approved for Chronic Conditions medication, you will be offered treatment for you and the prescriber to jointly consider. However, the final decision will always be the prescriber's.

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  • UK Medication

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Read up

    Liothyronine is a medication used in the treatment of hypothyroidism, also known as an underactive thyroid, which replenishes the level of hormones that your body doesn’t naturally create.

    Liothyronine is a synthetic version of the hormone that healthy thyroid glands produce. For people who suffer with an underactive thyroid, the gland is not producing enough and Liothyronine therefore boosts this level.

    Sufferers of an underactive thyroid may not notice straight away, as symptoms rarely present themselves immediately. However, in the long term, hypothyroidism can lead to weight gain, tiredness and depression.

    Taking Liothyronine increases the level of thyroxine hormones in your body, which prevents the symptoms of an underactive thyroid.

    Liothyronine is a prescription-only medication. Always follow the advice of your doctor and read the patient information leaflet provided in the medication packet. 

    Swallow the tablets with plenty of water, ideally before breakfast (or your first meal of the day). You may be taking this medicine for the rest of your life so it’s important that you understand how to take it properly.

    The standard Liothyronine tablets come in 3 strengths of 5mcg, 10mcg and 20mcg.

    You doctor will decide on your starting dose based on the results of your blood test. This can range from 10 micrograms to 60 micrograms per day, which can be made up in a number of ways. 

    If you forget a dose then you should take it as soon as possible after you remember. However, if it’s nearly time for your next dose then skip the forgotten one and move onto your next one. Do not take a double dose to make up for a missed one.

    If you take more Liothyronine tablets than you should then contact a doctor or emergency service straight away. Symptoms of an overdose include chest pain, a fever or an irregular heartbeat.

    You should not stop taking Liothyronine tablets unless you are specifically told to by a doctor or prescriber. These tablets are for long term use and you should continue to take them for as long as advised.

    Before taking Liothyronine, you should always first consult your doctor. You should not take Cerazette if any of the following apply to you:

    • if you are allergic to Liothyronine or any of the other ingredients of this medicine 
    • if you suffer from an overactive thyroid gland that produces too much thyroid hormone (thyrotoxicosis)
    • if you have any condition that affects your heart or circulation

    Your prescription of Liothyronine may also be affected by a number of other factors, so you should make your doctor aware if any of the following apply:

    • if you have suffered with an underactive thyroid gland for a long time
    • if you suffer from heart problems including angina, coronary artery disease or high blood pressure
    • if you are being treated for diabetes. The dose of your antidiabetic medicine may need to be changed as Liothyronine can raise blood sugar levels 
    • if you are elderly
    • if you are pregnant or breastfeeding.

    Like many medications with active ingredients, Liothyronine can affect or be affected by other medicines. You should inform your doctor if you are taking any of the following medications:

    • Anticoagulants (e.g. warfarin) used to thin the blood and prevent blood clots
    • Anticonvulsants (e.g. carbamazepine or phenytoin) used to prevent fits
    • Insulin and other treatments for diabetes
    • Medicines called cardiac glycosides (e.g. digoxin) used to treat heart conditions such as heart failure
    • Tricyclic antidepressants (e.g. amitriptyline / imipramine) used to treat depression
    • Colestyramine / colestipol which reduces the level of cholesterol (fats) in the blood
    • Oral contraceptives (‘the pill’)
    • Amiodarone, used to treat irregular heart beats
    • Barbiturates, used to induce sleep and decrease anxiety
    • Primidone, used for seizures or fits

    All medicines affect individual users differently, so not everyone who uses Liothyronine will experience the possible side effects. However, the most common ones include:

    • Vomiting (being sick)
    • Insomnia (sleeplessness)
    • Fever
    • Intolerance to heat
    • Tremor (involuntary, rhythmic muscle movements)
    • Allergic reactions such as rash, itching, oedema (abnormal accumulation of body fluid)
    • Angina pain (pain in the chest when exercising)
    • Irregular, thumping or fast heartbeats
    • Muscle cramps or weakness
    • Diarrhoea
    • Restlessness or excitability
    • Headache, face and neck redness, sweating
    • Loss of weight.

    If you do experience one or more of these side effects and they persist or worsen, then inform your doctor right away. You should also cease use of Liothyronine immediately and seek medical help immediately if you experience any serious side effects or signs of an allergic reaction.

    You can safely buy Liothyronine online at UK Meds. You will first need to have an online consultation with a medical doctor before your order will be supplied. The online consultation will ensure that Liothyronine is the right medication for your medical condition.

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