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Etham 800mg Tablet

Written By Dr. Swati Mishra, BDS
Reviewed By Dr. Mekhala Chandra, MD, MBBS
Last updated on 25 Nov 2025 | 03:05 PM (IST)
Etham 800mg Tablet is an antibiotic that belongs to a class of medicines known as anti tuberculosis drugs. It is used in the treatment and prevention of tuberculosis, an infectious disease that mainly affects the lungs and in some cases other parts of the body.
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General Information

Contains

Ethambutol (800mg)

Marketer

Acichem Laboratories

Storage

Store below 30°C
The content is shown in English
Etham 800mg Tablet image
Etham 800mg Tablet image

Product introduction

Etham 800mg Tablet is usually given in combination with at least one other tuberculosis medicine. It should be used in the dose and duration as advised by your doctor. This medicine may be taken with or without food, preferably at the same time every day. Do not skip any doses and finish the full course of treatment even if you feel better. Stopping it early can result in treatment failure and in the development of drug-resistant tuberculosis. This can lead to serious health complications.

If you miss a dose, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose as it may increase the side effects.

Some people may experience visual impairment and color blindness, as side effects of this medicine. Please consult your doctor if these side effects do not resolve or worsen. Inform your doctor if you have diabetes as it can lower the sugar levels in the blood. If you are diabetic, you should monitor your blood sugar regularly. Your doctor may monitor your liver function, vision, and thyroid function while on treatment with this medicine.

Uses of Etham Tablet

Benefits of Etham Tablet

Tuberculosis (TB)
Etham 800mg Tablet is used to treat tuberculosis, an infectious disease that mainly affects the lungs but can affect other parts of the body as well. It stops the growth of infection causing bacteria and helps in treating the infection. Take it in the dose and duration advised by the doctor. Your symptoms may improve before the infection is completely cured. Do not stop taking it without consulting your doctor as doing so may cause the infection to return or worsen. Follow your doctor’s instructions carefully to get maximum benefit.

Side effects of Etham 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 Etham
  • Visual impairment
  • Color blindness

How to use Etham 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. Etham 800mg Tablet may be taken with or without food.

How Etham Tablet works

Etham 800mg Tablet is an antibiotic. It works by slowing the growth of bacteria that causes tuberculosis.

Quick tips

  • Etham 800mg Tablet is effective at treating tuberculosis when taken together with other antibacterial drugs.
  • It has to be taken for several months in order for it work properly (usually 6 months).
  • Take it with food to avoid stomach upset.
  • It can lower your blood sugar. If you have diabetes, monitor your blood sugar regularly.
  • Your doctor may monitor your liver function, vision and thyroid function while on treatment with this medicine.
  • Avoid consuming alcohol while taking this medication.
  • Do not stop taking Etham 800mg Tablet even if you start to feel better. Stopping early can result in treatment failure and in the development of drug-resistant tuberculosis. This can be life-threatening and lead to other serious health risks.

Safety advice

Alcohol

Alcohol

CONSULT YOUR DOCTOR
It is not known whether it is safe to consume alcohol with Etham 800mg Tablet. Please consult your doctor.
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
The safety of Etham 800mg Tablet during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.
Breast feeding

Breast feeding

SAFE IF PRESCRIBED
Available human data suggest that the drug does not pass into breast milk in clinically significant amounts and is unlikely to harm the infant.
Driving

Driving

UNSAFE
Etham 800mg Tablet may cause side effects that could affect your ability to drive.
Etham 800mg Tablet occasionally causes sight problems and tingling or numbness in hand or feet. After taking this medicine you should not drive until you know how it affects you.
Kidney

Kidney

CAUTION
Etham 800mg Tablet should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Kidney function tests are advisable before the start of this medicine.
Liver

Liver

CAUTION
Etham 800mg Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.

Interaction with drugs

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

Isoniazid (Oral Route)

Talk to your doctor if you notice any unusual symptoms. Ethambutol may raise blood levels of the active form of Isoniazid.

Frequently asked questions

If your child vomited within 30 minutes of taking Etham 800mg Tablet, give the same dose again. If vomiting occurred 30 minutes after taking Etham 800mg Tablet, you need not repeat the dose. If your child vomits again after taking Etham 800mg Tablet, consult your doctor.
Etham 800mg Tablet stays for about 24 hours in your system. This duration varies from person to person and maybe different for patients with kidney problems.
Yes, it will work if you had taken proper treatment and got cured when you developed tuberculosis for the first time. If you have any doubt, ask your doctor.
Yes, it is important that you take all the prescribed TB drugs together for the recommended duration, else you will not be cured. A single drug is not prescribed to treat TB because it may increase the risk of developing multi-drug resistant tuberculosis, which is very difficult to treat.
Sometimes it happens that bacteria gets modified in your body and stops reacting to the medicine. As a result, the medicine stops working. This is called drug resistance. Drug resistance is uncommon if Etham 800mg Tablet is used in combination with other TB drugs.
Yes, Etham 800mg Tablet can be continued for more than 2 months, depending on your condition and as per your doctor’s advice. If after 2 months, your investigations show that the TB bacteria are still active, you may have to take Etham 800mg Tablet for 1 more month. In case you are resistant to other TB drugs, you may have to take Etham 800mg Tablet and other TB drugs (for which you are not drug resistant) for longer than 2 months.
You should consult your doctor and consider stopping the medicine immediately if you develop any vision problems like blurred vision, color blindness or any kidney problems like decreased amount of urine and swelling of your legs and feet. You may even develop liver troubles like nausea, vomiting and yellowish color of skin and eyes. Beware of all these symptoms and consult your doctor immediately.

Fact Box

Chemical Class

1,2- aminoalcohols

Habit Forming

No

Therapeutic Class

ANTI INFECTIVES

Action Class

Mycobacterial cell wall inhibitors-Ethambutol

Related lab tests

Complete Blood Count

Erythrocyte Sedimentation Rate

Mycobacterium Tuberculosis DNA PCR - Qualitative

Peripheral Smear Examination

References

  1. Gumbo T. Chemotherapy of Tuberculosis, Mycobacterium Avium Complex Disease, and Leprosy. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. 12th ed. New York, New York: McGraw-Hill Medical; 2011. pp. 1558-559.
  2. Chambers HF, Deck DH. Antimycobacterial Drugs. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. pp. 826-27.
  3. 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. 506.
  4. Ethambutol. Ontario, Canada: Patheon Inc.; 2007. [Accessed 01 Apr. 2019] (online) Available from:
  5. Chaves RG, Lamounier JA. Breastfeeding and maternal medications. J Pediatr (Rio J). 2004;80(5 Suppl):S189-S198. [Accessed 29 Mar. 2019] (online) Available from:
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Disclaimer

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: Acichem Laboratories
Address: 1, Prabhat Nagar, Jogeshwari (West), Mumbai-400102

Vendor Details

Country of origin: India

Lab tests offered by us

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Most medicines cannot be sold without a valid prescription, as per the Drugs and Cosmetics Act, 1940 and Rules, 1945
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