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The product code(s) for this leaflet is: PL 25258/0332.
Carbimazole 5mg, 20mg Tablets
Carbimazole 5mg Tablets
Carbimazole 20mg Tablets
carbimazole
1. What Carbimazole tablets are and what they are used for
2. What you need to know before you take Carbimazole tablets
3. How to take Carbimazole tablets
4. Possible side effects
5. How to store Carbimazole tablets
6. Contents of the pack and other information
The name of your medicine is Carbimazole 5 mg tablets or Carbimazole 20 mg tablets (called Carbimazole in this leaflet). This belongs to a group of medicines called 'anti-thyroid' medicines.
Carbimazole is used in adults and children to treat an over-active thyroid gland (called 'hyper-thyroidism').
Talk to your doctor or pharmacist before taking Carbimazole if:
Tell your doctor straight away if you develop fever or abdominal pain, which may be signs of inflammation of the pancreas (acute pancreatitis). Carbimazole may need to be discontinued.
If you are not sure if the above applies to you, talk to your doctor or pharmacist before taking Carbimazole.
Do not give this medicine to children under the age of two years because it may not be safe or effective.
Please tell your doctor or pharmacist if you are taking or have recently taken any other medicines. This includes medicines obtained without a prescription, including herbal medicines. This is because Carbimazole can affect the way some medicines work. Also some medicines can affect the way Carbimazole works.
In particular tell your doctor or pharmacist if you are taking any of the following:
Pregnancy
Carbimazole can cause harm to an unborn baby. You should use reliable contraception from the time you start treatment and during treatment.
Tell your doctor if you are pregnant, think you may be pregnant or are trying to become pregnant.
Your treatment with Carbimazole may need to be continued during pregnancy if the potential benefit outweighs the potential risk to you and your unborn baby.
To reduce the possibility of any effects on your baby:
Breast-feeding
You should not breast-feed if you are using Carbimazole. This is because small amounts may pass into the mother's milk.
You can drive when taking Carbimazole, but do not drive until you know how it affects you.
If you have been told by your doctor that you have an intolerance to some sugars (e.g. lactose), contact your doctor before taking this medicine.
Always take Carbimazole exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure.
Adults and the elderly: The recommended starting dose is one to three 20 mg tablets, or four to twelve 5 mg tablets daily. Once control is achieved your doctor will gradually reduce your dose to one to three 5 mg tablets each day.
Use in children: The recommended starting dose is three 5 mg tablets daily.
The dosage will be decided by your doctor according to your individual needs, and may be changed at intervals during treatment.
Do not change the dosage without consulting your doctor first.
Your doctor may decide to add an additional tablet (L-thyroxine), to help control your condition.
Some improvement is usually felt within one to three weeks. However, full beneficial effects usually take four to eight weeks.
In order to maintain control of the thyroid gland, you may need to continue to take Carbimazole tablets for several months. Your doctor will decide when treatment can be stopped. They may ask you to have occasional blood tests to help them to determine how you are responding to treatment.
Radio-iodine is another treatment for hyperthyroidism. If you need radioiodine treatment, your doctor will tell you to stop taking Carbimazole temporarily.
Contact your doctor or nearest hospital emergency department immediately. Take the container and any remaining tablets with you.
Take the next dose as soon as you remember. If your next dose is due, take both doses together.
Like all medicines, Carbimazole can cause side effects, although not everybody gets them.
Stop taking Carbimazole and see a doctor straight away if you notice any of the following side effects:
Your doctor may want you to stop taking the medicine and carry out some blood tests on you.
Other side effects (frequency not known, cannot be estimated from the available data):
Carbimazole can sometimes cause bone marrow depression which causes a reduction in the number of blood cells and reduces the ability to fight infection. If it is not treated as soon as it is detected the condition can become life-threatening. Your doctor should carry out tests to check for bone marrow depression before restarting your treatment.
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use Carbimazole tablets after the expiry date which is stated on the blister/bottle label and outer carton after EXP. The expiry date refers to the last day of that month.
This medicinal product does not require any special storage conditions.
Store in the original package in order to protect from moisture.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.
Carbimazole 5mg Tablets are white to off-white coloured, circular, flat beveled edge tablets, approximately 4.50 mm in size with “Y” debossed on one side and “11” on other side.
Carbimazole 20mg Tablets are white to off-white coloured, circular, flat beveled edge tablets, approximately 7.50 mm in size with “G” debossed on one side and “111” on other side.
Carbimazole 5mg and 20mg Tablets are available in PVC/PVDC/Alu foil blister packs and HDPE bottle pack containing 100 tablets.
Not all pack sizes may be marketed.
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This leaflet was last revised in 07/2020