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Carbidax 20mg Tablet 1
Carbidax 20mg Tablet 2

Carbidax 20mg Tablet

Carbimazole (20mg)
Genuine
Authenticity Assured
Prescription
required
NPPA Regulated
Show Details
Carbidax 20mg Tablet belongs to a group of medicine called anti-thyroid agents. It is used in the treatment of hyperthyroidism. It reduces the amount of thyroid hormones produced by the thyroid gland.

Written By Dr. Lipika Khurana, PGDHHM, BDS,
Reviewed By Dr. Sachin Gupta, MD Pharmacology, MBBS,
Last updated on 03 Sep 2026 | 01:01 AM (IST)
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General Information

Contains

Carbimazole (20mg)

Marketer

Daxia Healthcare

Storage

Store below 30°C
The content is shown in English
Carbidax 20mg Tablet 1
Carbidax 20mg Tablet 2

Product introduction

You should take it in a dose and duration as advised by the doctor. But, before taking it report to doctor if you have any known allergy to this medication. Your doctor may get regular blood tests done to check the levels of blood cells in your blood. Remember to inform doctor if you experience unexplained bleeding, fever, or general illness. Your doctor may advice for monitoring of liver function.

Common side effects of Carbidax 20mg Tablet include itching, headache, nausea, joint pain, and GI upset. If side effects persist or worsen, consult your doctor. Always use as directed to minimize risks and ensure safe use.

Uses of Carbidax Tablet

Benefits of Carbidax Tablet

Treatment of Hyperthyroidism
Hyperthyroidism is a condition where the thyroid gland produces too much hormone, leading to symptoms like rapid heartbeat, weight loss, and anxiety. Carbidax 20mg Tablet is used to control this overactivity by reducing the production of thyroid hormones. It helps restore hormonal balance, easing symptoms and improving overall health and energy levels.

Side effects of Carbidax Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Carbidax
  • Headache
  • Jaundice
  • Paresthesia (tingling or pricking sensation)
  • Dizziness

How to use Carbidax Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Carbidax 20mg Tablet may be taken with or without food.

How Carbidax Tablet works

Carbidax 20mg Tablet works by reducing the thyroid hormones produced by the thyroid gland.

All substitutes for Carbidax 20mg Tablet

For information purposes only. Consult a doctor before taking any medicine.

Anti-Thyrox 20 Tablet

by Macleods Pharmaceuticals Pvt Ltd
₹11.2/tablet
37% costlier
<h3 class=bodySemiBold>Anti-Thyrox 20 Tablet</h3>

Neo-Mercazole 20 Tablet

by Abbott
₹13.05/tablet
60% costlier
<h3 class=bodySemiBold>Neo-Mercazole 20 Tablet</h3>

Carol 20mg Tablet

by Eris Lifesciences Ltd
₹11.95/tablet
46% costlier
<h3 class=bodySemiBold>Carol 20mg Tablet</h3>

Sterzole 20 Tablet

by Captab Biotec
₹8.15/tablet
same price
<h3 class=bodySemiBold>Sterzole 20 Tablet</h3>

Neo Mercazole 20mg Tablet

by Abbott
₹10.78/tablet
32% costlier
<h3 class=bodySemiBold>Neo Mercazole 20mg Tablet</h3>

Quick tips

  • Carbidax 20mg Tablet is used for the treatment of hyperthyroidism.
  • You may have to stop taking it for a while if you are also taking radio-iodine as a treatment for your overactive thyroid.
  • It may affect the level of blood cells in your blood. Inform your doctor if you experience symptoms such as unexplained bruising or bleeding, sore throat, mouth ulcers, fever, or general illness.
  • Stop taking Carbidax 20mg Tablet and Inform your doctor if you develop symptoms of liver damage such as abdominal pain, loss of appetite, darkened urine, or yellowing of the eyes or skin.
  • Inform your doctor if you are pregnant, planning to conceive, or breastfeeding.

Safety advice

Alcohol

Alcohol

CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Carbidax 20mg Tablet. Please consult your doctor.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
Carbidax 20mg Tablet is not recommended during pregnancy as there is positive evidence of fetal risk based on animal studies. However, it may still be prescribed by a doctor in situations where the benefits outweigh the risks.
Breast feeding

Breast feeding

CAUTION
Carbidax 20mg Tablet should be used with caution during breastfeeding. Breastfeeding should be held until the treatment of the mother is completed and the drug is eliminated from the body.
Driving

Driving

CONSULT YOUR DOCTOR
It is not known whether Carbidax 20mg Tablet alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react. Please consult your doctor.
Kidney

Kidney

CAUTION
Carbidax 20mg Tablet should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Liver

Liver

UNSAFE
Carbidax 20mg Tablet is unsafe to use in patients with liver disease and should be avoided.
Severe liver disorder is a contraindication; consult your doctor.
All

Interaction with drugs

Taking Carbidax with any of the following medicines can modify the effect of either of them and cause some undesirable side effects
Moderate

Aminophylline (Oral Route)

Your doctor may monitor your treatment and adjust the doses as per the observations. Carbimazole may reduce blood levels of Aminophylline.
Moderate

Clozapine (Oral Route)

Your doctor may monitor your blood cell count and adjust the doses as per the observations.
Moderate

Theophylline (Oral Route)

Your doctor may monitor your treatment and adjust the doses as per the observations. Carbimazole may reduce blood levels of Theophylline.
Moderate

Acenocoumarol (Oral Route)

Your doctor may frequently monitor your blood clotting time. Carbimazole may increase the effect of Acenocoumarol.
Moderate

Theophylline (Injection Route)

Your doctor may monitor your treatment and adjust the doses as per the observations. Carbimazole may reduce blood levels of Theophylline.

Frequently asked questions

No, you should not stop taking Carbidax 20mg Tablet even if you start feeling better. You may have to take it for several months depending on your investigations. The duration of the treatment will continue till the thyroid hormone levels return to normal. This duration may vary from six months to 18 months. Your doctor will decide when the treatment should be stopped.
You may start feeling better within 1-3 weeks of starting Carbidax 20mg Tablet. However, it usually takes 4-8 weeks to see the full benefits of the treatment.
Carbidax 20mg Tablet may cause hair loss but not in everyone. It has been seen that on discontinuing Carbidax 20mg Tablet or replacing Carbidax 20mg Tablet with another medicine, there is improvement, and hair loss reverses.
You should not take Carbidax 20mg Tablet if you have serious liver disorder or serious blood disorder. You should also avoid taking this medicine if you are pregnant or are allergic to Carbidax 20mg Tablet or any of the ingredients present in it Carbidax 20mg Tablet.
Very rarely, Carbidax 20mg Tablet interferes with the bone marrow and causes a drastic drop in white blood cells. These white blood cells are a part of the body's defense against bacterial infections, such as sore throats. So, a sore throat can sometimes be the first clue that Carbidax 20mg Tablet is affecting the bone marrow. Your sister should contact her doctor and get a blood test. If a blood test shows her white blood cell count to be normal, then she can continue Carbidax 20mg Tablet. If not, she should stop the treatment after consulting the doctor.
The effectiveness and side effects of Carbidax 20mg Tablet in children are more or less the same as in adults. Carbidax 20mg Tablet should not be used in children less than 2 years of age.
If you have started taking Carbidax 20mg Tablet, the dose of warfarin may need adjustment. You should consult your doctor and get your bleeding time checked so that the dose can be adjusted according to the results of the investigations.
Yes, Carbidax 20mg Tablet may cause liver problems, though not in everyone. A very common side effect of Carbidax 20mg Tablet can be the yellowing of skin and eyes (jaundice). It may also cause abnormal liver function tests, hepatitis, etc. If you notice jaundice, you should discontinue Carbidax 20mg Tablet and seek immediate medical advice.
No, it is advisable not to take Carbidax 20mg Tablet during pregnancy as it may cause abnormalities in your baby. You should consult your doctor because if your thyroid hormone levels are not controlled, the chances of birth defects in your baby are much more. In case Carbidax 20mg Tablet is the only option for you, your doctor will prescribe the lowest possible dose, which will be regulated according to your condition. You can stop it 3-4 weeks before delivery to reduce the chances of complications in your baby.
No, you should not stop taking Carbidax 20mg Tablet even if you start feeling better. You may have to take it for several months depending on your investigations. The duration of the treatment will continue till the thyroid hormone levels return to normal. This duration may vary from six months to 18 months. Your doctor will decide when the treatment should be stopped.
You may start feeling better within 1-3 weeks of starting Carbidax 20mg Tablet. However, it usually takes 4-8 weeks to see the full benefits of the treatment.
Carbidax 20mg Tablet may cause hair loss but not in everyone. It has been seen that on discontinuing Carbidax 20mg Tablet or replacing Carbidax 20mg Tablet with another medicine, there is improvement and hair loss reverses.
You should not take Carbidax 20mg Tablet if you have serious liver disorder or serious blood disorder. You should also avoid taking this medicine if you are pregnant or are allergic to Carbidax 20mg Tablet or any of the ingredients present in it Carbidax 20mg Tablet.
Very rarely, Carbidax 20mg Tablet interferes with the bone marrow and causes a drastic drop in white blood cells. These white blood cells are a part of the body's defense against bacterial infections, such as sore throats. So, a sore throat can sometimes be the first clue that Carbidax 20mg Tablet is affecting the bone marrow. Your sister should contact her doctor and get a blood test. If blood test shows her white blood cell count to be normal, then she can continue Carbidax 20mg Tablet. If not, she should stop the treatment after consulting the doctor.
The effectiveness and side effects of Carbidax 20mg Tablet in children are more or less the same as in adults. Carbidax 20mg Tablet should not be used in children less than 2 years of age.
If you have started taking Carbidax 20mg Tablet, the dose of warfarin may need adjustment. You should consult your doctor and get your bleeding time checked so that the dose can be adjusted according to the results of the investigations.
Yes, Carbidax 20mg Tablet may cause liver problems, though not in everyone. A very common side effect of Carbidax 20mg Tablet can be yellowing of skin and eyes (jaundice). It may also cause abnormal liver function tests, hepatitis, etc. If you notice jaundice, you should discontinue Carbidax 20mg Tablet and seek immediate medical advice.
No, it is advisable not to take Carbidax 20mg Tablet during pregnancy as it may cause abnormalities in your baby. You should consult your doctor because if your thyroid hormone levels are not controlled, chances of birth defects in your baby are much more. In case Carbidax 20mg Tablet is the only option for you, your doctor will prescribe the lowest possible dose, which will be regulated according to your condition. You can stop it 3-4 weeks before delivery to reduce chances of complications in your baby.

Fact Box

Chemical Class

Carbonylimidazoles

Habit Forming

No

Therapeutic Class

HORMONES

Action Class

Antithyroid Agents

Related lab tests

Anti Thyroglobulin Antibody

Thyroid Stimulating Hormone

Thyroxine - Free

Thyroxine - Total

References

  1. Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. p. 205.
  2. Carbimazole. London, UK: Amdipharm UK Limited; 2008 [revised 30 Jul. 2014]. [Accessed 04 Apr. 2019] (online) Available from:
  3. Chaves RG, Lamounier JA. Breastfeeding and maternal medications. J Pediatr (Rio J). 2004;80(5 Suppl):S189-S198. [Accessed 4 Apr. 2019] (online) Available from:
  4. MIMS India. Carbimazole. [Accessed 28 Mar. 2023] (online) Available from:
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Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Daxia Healthcare
Address: A,B,C-111, SAKAR COMPLEX, SANSTHA VASAHAT, RAOPURA, Vadodara-390001, Gujarat, India

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Carbidax 20mg Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.

In case of any issues, contact us

Email ID: [email protected]
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India

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