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Cytomel T3

Bottle of 30 tablets. 50mcg of Liothyronine T3 per tab. Thylexan is a thyroid hormone responsible for regulating metabolism. It is used to treat hypothyroidism.

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Cytomel T3
Rating: 4 based on 66 reviews

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Bottle of 30 tablets. 50mcg of Liothyronine T3 per tab. Thylexan is a thyroid hormone responsible for regulating metabolism. It is used to treat hypothyroidism.

What does T3 do?

Liothyronine, or T3 (L-triiodothyronine) is one of the thyroid hormones, synthesized and secreted by the thyroid gland. T3 contains three iodine atoms and is derived from peripheral monodeiodination of T4 (at the 5th position of iodothyronine nucleus); T3 is the main hormone delivered and used by the tissues. Thyroid hormones increase oxygen consumption by the majority of tissues throughout the body; both T3 and T4 increase the BMR (basal metabolic rate) and the metabolism of lipids, carbohydrates and proteins. Therefore thyroid hormones exhibit significant effects on every organ system and are crucial in the CNS development.

Cytomel T3 is used mainly as a replacement or supplemental therapy in patients with hypothyroidism, except for transient hypothyrodism during the recovery phase of subacute thyroiditis.


How does T3 work?

T3 is a tyrosine-based hormone produced by the thyroid gland. Although the major form of thyroid hormone in the blood is thyroxine (T4), T4 is converted to the more active T3 form (liothyronine) by deiodinases in peripheral tissues. Thyroid hormones are essential for development and differentiation of all cells in human body; they regulate protein, fat, and carbohydrate metabolism, as well as how individual cells utilise energetic compounds. Thyroid hormone derivatives initiate their downstream effects through binding to nuclear thyroid hormone (TR) receptors. In a bound active state TR can regulate gene expression via direct interaction with DNA components. Various intercellular signalling pathways lead to direct effect on metabolism; T3 promotes an increase in BMR, protein synthesis, and sensitivity to catecholamines (e.g. adrenaline).


How should Cytomel be taken?

Cytomel should be taken orally, with or without food following the prescribed dosage regimen. It works best, when taken at the same time each day and for at least few weeks to relieve symptoms of a patient’s condition.

Cytomel should be taken 4 hours apart from calcium salts (like calcium carbonate), cholestyramine, or sucralfate. Double doses should not be taken at any time; in case of a missed dose – one should be taken as soon as possible unless, it is time for the next dose, in which case the missed dose should be skipped and regular dosing schedule followed.


Safety Information

Cytomel is contraindicated if: the patient is allergic to any ingredient in cytomel; in presence or a history of heart attack; presence of untreated thyrotoxicosis or uncorrected adrenal gland problems.

Medical assistance is required if any of the following apply:

  • Dose should be adjusted in case of any of the following: tremor, nervousness, insomnia, headaches, change in appetite, weight loss, diarrhoea, increased sweating or sensitivity to heat, increased heart rate, chest pain, and shortness of breath;
  • Concomitant treatment with blood thinners will require dosage adjustment in the blood thinner;
  • Diabetes. Cytomel may affect blood glucose levels;
  • Elderly patients may be more sensitive and should use cytomel with caution;
  • T3 may cause temporary hair loss in children;
  • T3 can be passed into breast milk; breastfeeding of pregnant women should consult a doctor whether treatment with cytomel should be continued;
  • Thyroid function test may be required on a regular basis;
  • Doctors should be informed if patients is undergoing therapy with T3 prior receiving any medical or dental treatment, emergency care, or surgery;

Cytomel will be taken for life unless patient is suffering from temporary low thyroid activity associated with thyroid inflammation.


Side effects:

Most common side effects include partial, temporary hair loss in children; tachycardia, jittery feeling and weight loss.

In case of any of the following severe side effects, patient should seek imeediate medical assistance: allergic reaction, changes in menstrual period, chest pain, difficulty breathing, irregular heartbeat, leg cramps, diarrhoea or vomiting.





Updated review. I received my order 25/4/17 which I placed 4 weeks prior. In that period of time I sent numerous emails of which none were answered. I was given no explanation as to what the delay was. However my order has arrived and I'm very happy with the product. A little more communication would be much appreciated. Will I use this website 50/50.



An update on my last review on the 13/4/17. I had a email from rx apologising for the inconvenience in delay and a day later received tracking for my orders and on Tuesday 25th received them in good order. I am presuming they have had problems with suppliers and hopefully they will sort it out as the product is good so will use them again once they do.



Had to wait 3 weeks for new shipment but was kept informed, received 2 days after shipping , can tell straight away this is real t3 Very happy



I am hypothyroid and cannot get T3 within the NHS protocol. A private prescription would cost over £400.



Used to control my metabolism.
High quality T3
Will buy again



Recommended by my doctor, Who also forwarded me to this site,
Incredible results.



Very good stuff!!! Did not expect much of the effect but its absolutely top quality stuff on internet. Highly recommended



Absolutely does the trick, felt normal again after years of struggling. GP's don't like diagnosing thyroid issues. Lost weight and feel great. Prompt delivery and great service all around.



No respons on my mails. But got the product, got really pain on my stomach when taking the pills, but it works a little



First class service fast delivery and rx cart is the only company I trust for t3 and clen knowing they work and are legit thanks.

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