Coxwin 3FD 450 mg/300 mg/800 mg Tablet

Last Updated: March 24th, 2026

Coxwin 3FD 450 mg/300 mg/800 mg Tablet is a product of Marc Laboratories Pvt Ltd

Composition: Rifampicin (450mg) + Isoniazid (300mg) + Ethambutol (800mg)

₹ 37.69

Note: MRP can vary depending up on batch!

*MRP inclusive of all taxes

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All Details About Coxwin 3FD 450 mg/300 mg/800 mg Tablet

Find out detailed description, uses, directions of use, side effects, warnings and precautions, frequently asked questions about Coxwin 3FD 450 mg/300 mg/800 mg Tablet

Description:

Coxwin 3FD 450 mg/300 mg/800 mg Tablet is a combination medicine used in the treatment of tuberculosis. It prevents the growth of the microorganisms that cause the infection.

Coxwin 3FD 450 mg/300 mg/800 mg Tablet is a prescription medicine and it is to be taken as suggested by the doctor. It should be taken in an empty stomach and take it at a fixed time to ensure better efficacy. Do not consume more than the recommended dose, as this may have harmful effects on your body. If you miss a dose, take it as soon as you remember. The course of the treatment must be completed even if you feel better. Sudden discontinuation of the treatment may affect the potency of the medicine. The medicine may take some to show its effects on the symptoms. However, it is advised to consult the doctor if you feel an aggravation of the condition or if your condition does not improve.

Some common side effects of this medicine are nausea, vomiting, fever, dark-colored urine, sweating, increased saliva, etc. To cope up with the side effects, you should drink plenty of water. If any of the side effects get aggravated, you must consult your doctor immediately. Generally, serious side effects are rare. If you experience any allergic reaction (rashes, itching, swelling, shortness of breath, etc.), you must seek immediate medical help.

Earlier taking this medicine, you should tell your doctor if you are taking any medicines for any health condition. Tolerants with liver and kidney ailments must take this medicine with proper consultation and caution. Pregnant or breastfeeding women should also consult with the doctor before taking it. Avoid drinking alcohol as it can cause excessive drowsiness with this medicine. It usually does not impair your ability to drive, but you should not drive if it makes you feel sleepy or dizzy. During the treatment, you must take adequate rest and eat a healthy diet for a faster recovery. While on the medication, your doctor may ask for a few laboratory and diagnostic tests to know the effects of the medicine on your body.

Uses:

Treatment of Tuberculosis (TB)

Directions For Use:

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. Coxwin 3FD 450 mg/300 mg/800 mg Tablet is to be taken on an empty stomach.
Avoid Coxwin 3FD 450 mg/300 mg/800 mg Tablet with tyramine-rich food such as cheese, smoked fish, meats and some types of beer.

Side Effects:

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

Ordinary side effects of Coxwin 3FD

Nausea
Vomiting
Rash
Fever
Murky colored urine
Sweating
Increased sputum production
Salivation
Watery eyes
Increased liver enzymes
Jaundice
Visual impairment
Increased uric acid level in blood
Gout
Peripheral neuropathy (tingling and numbness of feet and hand)

Warning & Precautions:

Alcohol

UNSAFE

Consumption of alcohol with Coxwin 3FD 450 mg/300 mg/800 mg Tablet may cause a disulfiram-like reaction, leading to symptoms such as flushing, increased heart rate, low blood pressure, nausea, lightheadedness, and severe headache.

Pregnancy

CONSULT YOUR DOCTOR

The safety of Coxwin 3FD 450 mg/300 mg/800 mg 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

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

UNSAFE

Coxwin 3FD 450 mg/300 mg/800 mg Tablet may cause side effects that could affect your ability to drive.
Coxwin 3FD 450 mg/300 mg/800 mg 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

CAUTION

Coxwin 3FD 450 mg/300 mg/800 mg 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

CAUTION

Coxwin 3FD 450 mg/300 mg/800 mg Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.

FAQs:

Which is the best time to take Coxwin 3FD 450 mg/300 mg/800 mg Tablet?

Take Coxwin 3FD 450 mg/300 mg/800 mg Tablet exactly as directed by your doctor. It is best to take the medicine on an empty stomach one hour before or two hours after meals.

Can the use of Coxwin 3FD 450 mg/300 mg/800 mg Tablet make birth control pills ineffective?

Affirmative, Coxwin 3FD 450 mg/300 mg/800 mg Tablet can make birth control pills less effective. Ask the doctor about using a birth control method which does not affect your hormone levels (such as a condom, diaphragm, spermicide).

Is tuberculosis a curable disease?

Affirmative, tuberculosis (TB) is a curable disease and can be cured with 6–9 months of treatment. Drug-resistant forms of TB are also curable, but more difficult to treat. Treatment for drug-resistant TB can last up to 2 years and require medications that can cause serious side effects.

What are the instructions for the storage and disposal of Coxwin 3FD 450 mg/300 mg/800 mg Tablet?

Retain this medicine in the packet or the container it came in, tightly closed. Store it according to the instructions mentioned on the pack or label. Dispose of the unused medicine. Make sure it is not consumed by pets, children and other people.

Can the use of Coxwin 3FD 450 mg/300 mg/800 mg Tablet cause discoloration of the urine?

Affirmative, Coxwin 3FD 450 mg/300 mg/800 mg Tablet contains rifampicin which can cause temporary discoloration of your teeth, sweat, urine, saliva, and tears (red, orange, or brown color). This side effect is usually not harmful. However, discoloration of urine can be a sign of liver damage. Call your doctor if you have discoloration of urine with stomach pain, loss of appetite, and jaundice (yellowing of your skin or eyes).

Can I discontinue Coxwin 3FD 450 mg/300 mg/800 mg Tablet if I feel well?

No, do not discontinue Coxwin 3FD 450 mg/300 mg/800 mg Tablet. Take the proper course of the drug that has been prescribed to you even if you begin to feel better. If you stop taking Coxwin 3FD 450 mg/300 mg/800 mg Tablet, your infection may become worse and difficult to treat. It may even result in drug-resistant TB i.e. drugs you were taking may no longer work for Tuberculosis.

Can Coxwin 3FD 450 mg/300 mg/800 mg Tablet cause visual impairment?

Coxwin 3FD 450 mg/300 mg/800 mg Tablet contains Ethambutol, which may cause visual impairment. Inform the doctor immediately if you notice any changes in your eyesight.

Written by:
Dr. T. Sharmila Krishna
M.B.B.S., MD (Biochemistry)

Reviewed by:
Dr. Sureshbabu Yadav
M.B.B.S., DIP.DIAB, F.R.S.H

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