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Liothyronine tablets and capsules

Cytomel

Liothyronine is a replacement thyroid hormone. It is used to treat the more severe conditions in which the thyroid doesn't produce enough thyroxine.

You will need regular blood tests to check your thyroid levels, particularly at the beginning of this treatment.

If you experience any side-effects, speak with your doctor, as your dose may need adjusting.

At a glance

  • Liothyronine is a medicine used to treat an underactive thyroid gland.

  • It works quickly by restoring the balance of thyroid hormone in your body.

  • Take liothyronine exactly as your doctor tells you, usually with water.

  • Your doctor will gradually increase your dose, taking it spaced out throughout the day.

  • You will need regular blood tests to check your thyroid levels during treatment.

  • If you have diabetes, check your blood glucose more often as this medicine can affect blood sugar.

  • Tell your doctor if you experience side-effects like palpitations, as your dose may need adjusting.

تابع القراءة أدناه

About liothyronine

نوع الدواء

A thyroid hormone

يستخدم لـ

An underactive thyroid gland

Also known as

Cytomel® (USA); Liothyronine sodium

متوفر كـ

Tablets, capsules

If you have an underactive thyroid gland, it means that your thyroid does not produce enough thyroid hormone. This is a condition known as hypothyroidism. Liothyronine restores the balance of thyroid hormone in your body. It is similar to thyroxine, the hormone which your body produces naturally. Although a medicine called ليفوثيروكسين is usually prescribed in preference to liothyronine for people with this condition, liothyronine is given when a fast action is needed, as it works more quickly.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. For these reasons, before you start taking liothyronine it is important that your doctor knows:

  • If you have heart or blood vessel disease, or a high blood pressure.

  • If you have either diabetes (diabetes mellitus) or diabetes insipidus.

  • إذا كنت تتناول أو تستخدم أي أدوية أخرى. يشمل ذلك أي أدوية تتناولها والتي يمكن شراؤها بدون وصفة طبية، بالإضافة إلى الأدوية العشبية والمكملات الغذائية.

  • إذا كنت قد تعرضت في أي وقت مضى لرد فعل تحسسي تجاه دواء.

تابع القراءة أدناه

  • Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about liothyronine and will also provide you with a full list of the side-effects which you could experience from taking it.

  • Take liothyronine exactly as your doctor tells you to. It is usual for your doctor to give you a small dose (such as ½-1 tablet a day) when you first take liothyronine, and then for your dose to be gradually increased to two or three tablets daily, taken spaced out throughout the day.

  • Take the tablets with a drink of water. You can take liothyronine either before or after meals.

  • If you forget to take a dose, take it as soon as you remember. Try to take the correct number of doses each day but do not 'double up' to make up for any missed doses.

  • Try to keep your regular appointments with your doctor so that your progress can be monitored. You will need regular blood tests to check your thyroid levels, particularly in the early stages of your treatment.

  • Continue to take the tablets until your doctor tells you to stop.

  • If you have diabetes you may need to check your blood glucose more frequently as these tablets can affect the levels of sugar in your blood. Your doctor will advise you about this.

  • If you are due to have an operation or any dental treatment, please tell the person carrying out the treatment that you are taking liothyronine.

تابع القراءة أدناه

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the ones associated with liothyronine. You will find a full list in the manufacturer's information leaflet supplied with your medicine. Experiencing side-effects may be an indication that your dose needs adjusting, so speak with your doctor if you experience any of the symptoms listed below.

Liothyronine side-effects

ماذا يمكنني أن أفعل إذا واجهت هذا؟

الشعور بالغثيان (الغثيان) أو التقيؤ (القيء)

Eat little and often. Stick to simple foods

إسهال

اشرب الكثير من الماء لتعويض السوائل المفقودة

صداع

اشرب الكثير من الماء واطلب من الصيدلي أن يوصي بمسكن مناسب للألم. إذا استمرت الصداع، أخبر طبيبك

The sensation of having a 'thumping' heart (palpitations) or chest pain

Let your doctor know about this as your dose may need adjusting

Feeling restless or shaky, flushing, sweating, difficulty sleeping, high temperature (fever), loss of weight, cramps, temporary loss of hair (in children), itchy rash

إذا أصبحت أي من هذه الأمور مزعجة، تحدث مع طبيبك

إذا شعرت بأي أعراض أخرى تعتقد أنها قد تكون بسبب الأقراص، تحدث مع طبيبك أو الصيدلي للحصول على مزيد من النصائح.

  • احفظ جميع الأدوية بعيدًا عن متناول ورؤية الأطفال.

  • احفظه في مكان بارد وجاف، بعيدًا عن الحرارة المباشرة والضوء.

معلومات هامة عن جميع الأدوية

إذا اشتريت أي أدوية، تحقق مع الصيدلي من أنها آمنة لتناولها مع الأدوية الأخرى التي تتناولها.

لا تأخذ أبدًا أكثر من الجرعة الموصوفة. إذا كنت تشك في أنك أو شخص آخر قد تناول جرعة زائدة من هذا الدواء، اذهب إلى قسم الحوادث والطوارئ في مستشفى منطقتك. خذ العبوة معك، حتى لو كانت فارغة.

هذا الدواء لك. لا تعطه لأشخاص آخرين حتى لو بدت حالتهم مشابهة لحالتك.

لا تحتفظ بالأدوية منتهية الصلاحية أو غير المرغوب فيها. خذها إلى صيدليتك المحلية التي ستتولى التخلص منها نيابة عنك.

إذا كان لديك أي أسئلة حول هذا الدواء، اسأل الصيدلي الخاص بك.

الإبلاغ عن الآثار الجانبية لدواء أو لقاح

إذا واجهت آثارًا جانبية، يمكنك الإبلاغ عنها عبر الإنترنت من خلال Yellow Card website.

symptom checker

غير متأكد من خلط الأدوية؟

تحقق من التفاعلات المحتملة بين الأدوية والمكملات الغذائية والأطعمة قبل تناولها معًا.

الأسئلة الشائعة

What is the main difference between liothyronine and levothyroxine?

Liothyronine is similar to thyroxine, the hormone your body naturally produces, and is used to restore the balance of thyroid hormone in your body. While levothyroxine is more commonly prescribed for an underactive thyroid, liothyronine is chosen when a faster action is needed because it works more quickly.

I have diabetes. How might liothyronine affect me?

If you have diabetes, liothyronine can affect your blood sugar levels. You may need to check your blood glucose more frequently when taking this medicine. Your doctor will provide specific advice on how to manage this.

What should I do if I forget to take a dose of liothyronine?

If you miss a dose of liothyronine, take it as soon as you remember. It's important to try and take the correct number of doses each day, but you should not 'double up' on doses to compensate for any that you have missed.

How will my doctor monitor my treatment with liothyronine?

Your doctor will want you to attend regular appointments to monitor your progress. This will include regular blood tests to check your thyroid hormone levels, especially during the initial stages of your treatment.

Are there any foods or drinks I should avoid while taking liothyronine?

The article states that you can take liothyronine either before or after meals, implying that it does not have specific food restrictions. It doesn't mention any particular foods or drinks to avoid while on this medication.

What should I do if I experience side-effects from liothyronine?

If you experience side-effects from liothyronine, it could be an indication that your dose needs adjustment. You should speak with your doctor about any symptoms, especially if they become troublesome or include palpitations, chest pain, restlessness, or a high temperature.

How should I store my liothyronine medicine?

Liothyronine should be stored in a cool, dry place. It's important to keep all medicines out of the reach and sight of children, and away from direct heat and light.

Can I take other medicines, including herbal remedies, with liothyronine?

Before you start taking liothyronine, it is important to inform your doctor about all other medicines you are taking. This includes any medicines available without a prescription, as well as herbal and complementary medicines. This ensures there are no unsafe interactions.

قراءة إضافية ومراجع

تابع القراءة أدناه

About the authorView full bio

Author image

مايكل ستيوارت، MRPharmS

Medicine Leaflet Review Manager – Contractor, Pharmacist

BPharm (Hons), MRPharmS

Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.

About the reviewer

Author image

سيد داجاني

Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.

تاريخ المقال

تمت كتابة المعلومات على هذه الصفحة ومراجعتها من قبل أطباء مؤهلين.

  • المراجعة التالية مستحقة: 19 يناير 2028
  • 19 يناير 2025 | أحدث إصدار

    آخر تحديث بواسطة

    مايكل ستيوارت، MRPharmS

    مراجعة من قبل

    سيد داجاني
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