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Ethambutol - Indications, Dosage, Side Effects and Precautions

Written & Compiled by Anushta Chandrapalan, M.Sc  | Medically Reviewed by The Medindia Medical Review Team
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Information about Ethambutol

Generic Name : Ethambutol
Pronunciation : e tham' byoo tole
Latest prescription information about Ethambutol. Learn how to pronounce the drug's name, its indications, dosage, how to take, when to take, when not to take, side effects, special precautions, warnings and its storage instructions . Also listed are the International and Indian trade name(s) of the drug and its price list.
ICD Code : Y41.1 | Therapeutic Classification : Anti- Tuberculosis

Trade Names/Brand Names of Ethambutol


Why is Ethambutol Prescribed? (Indications)

This medication is an antibacterial agent, prescribed for tuberculosis (TB). It stops the growth of TB cells. 

When should Ethambutol not be taken? (Contraindications)

Contraindicated in patients with known optic neuritis (optic nerve inflammation) and hypersensitivity.

What is the dosage of Ethambutol?

PO- Adult- Initial: The recommended dose is 15mg/kg. Re-treatment: The recommended dose is 25 mg/kg.

How should Ethambutol be taken?

It comes as a tablet to take by mouth, once a day in the morning.

What are the warnings and precautions for Ethambutol?

• Caution should be exercised in patients with history of kidney or liver disease, gout or eye disorders, any allergy, who are taking other medications, children less than 13 years old, during pregnancy and breastfeeding.

It may cause dizziness, do not drive a car or operate machinery while taking this medication.

Monitor liver, kidney functions, complete blood cell counts, and vision changes regularly while taking this medication.

Avoid long-term use of this medication.

What are the side effects of Ethambutol?

   Most Common : Vision impairment.
   Hypersensitivity : Stevens-Johnson syndrome, skin inflammation, redness of the skin, itching and joint pain.
   Gastrointestinal : Loss of appetite, nausea, vomiting, stomach upset and abdominal pain.
   Central Nervous System : Fever, uneasiness, headache, dizziness, mental confusion, disorientation and hallucinations.
   Blood : Decrease in white blood cells and platelets.

What are the other precautions for Ethambutol?

Take full course of treatment.

What are the storage conditions for Ethambutol?

Store it at controlled room temperature (20 to 25°C), and in an airtight container. Keep away from children.

Schedule : H
Prescription drugs - Drugs to be sold only under the prescription of a Registered Medical Practitioner.

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Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.


vskandari, India

Sir kindly Suggest me about the dose of the ATTdrugs.All the drugs of T B should be taken in fasting or in dividing doses as some are after meal/BF.

vijay_123, India

Dear Sir/Madam,I am taking R-cinex 600[empty stomach], combutol 1000(after Breakfast).I am working so sometimes I forget to take combutol tablets for a day...So can i take next day double dose...Pls advise me and give me a suggestions

Dnyanesh_raut, India

my brother has swelling and rashes on leg , his skin become hard on leg and foot joint , doctor found it is T.B.Lymphadinitis , so pls tell me is it proper treatment for this.

omkar, India

Dear Sir I am taking (combutol 1000) tablet empty stomach last 3week but i have little pain left side the stomach & loss of appetite .What is the reason 1st & 2nd week i was feeling good but last 2day loss of appetite pls reply soon siddhesh.dolas@gmail.com

girishan, United Arab Emirates

Dear sir,I am taking rcinex 450,and pyridoxine tablet empty stomach last 2 month. But now I have little pain left side the stomach. What is the reason, any gas or acidity problem? girish united arab emirates. Before, doctor gave aura d6 tablet. Please reply

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