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MARCONEX 300MG/800MG TABLET

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Composition for MARCONEX

Isoniazid(300 mg),Ethambutol(800 mg)

food interaction for MARCONEX

alcohol interaction for MARCONEX

pregnancy interaction for MARCONEX

lactation interaction for MARCONEX

food
alcohol
pregnancy
lactation
Avoid Marconex 300mg/800mg tablet with tyramine-rich food such as cheese, smoked fish, meats and some types of beer.
UNSAFE
Marconex 300mg/800mg tablet may cause symptoms such as flushing, increased heartbeat, nausea, thirst, chest pain and low blood pressure with alcohol (Disulfiram reactions).
UNSAFE
Marconex 300mg/800mg tablet may be unsafe to use during pregnancy.
Animal studies have shown adverse effects on the foetus, however, there are limited human studies. The benefits from use in pregnant women may be acceptable despite the risk. Please consult your doctor.
WEIGH RISKS VS. BENEFITS
Marconex 300mg/800mg tablet is probably safe to use during breastfeeding. Please consult your doctor.
SAFE

SALT INFORMATION for MARCONEX

Isoniazid(300 mg)

Uses

Isoniazid is used in the treatment and prevention of tuberculosis (TB).

How it works

Isoniazid belongs to a class of antituberculosis drugs. It suppresses the growth of tuberculosis causing bacteria (Mycobacterium tuberculosis). It interferes with the formation of the outer protective covering (cell wall) of the bacteria by inhibiting the synthesis of a chemical called mycolic acid an essential component of cell wall.

Common side effects

Vomiting, Nausea, Inflammation of the optic nerve of the eye, Peripheral neuropathy, Agranulocytosis (deficiency of granulocytes in the blood), Aplastic anemia, Diarrhoea, Dry mouth, Gastrointestinal disorder, Haemolytic anemia, Hepatitis (viral infection of liver)
Ethambutol(800 mg)

Uses

Ethambutol is used in the treatment of tuberculosis (TB).

How it works

Ethambutol belongs to a class of anti-tuberculosis drugs. It suppresses the growth of tuberculosis causing bacteria (Mycobacterium tuberculosis). Ethambutol enters the growing bacteria and kills the bacteria by inhibiting an important enzyme arabinosyl tranferases involved in the formation of the outer protective covering of the bacteria called cell wall.

Common side effects

Tingling sensation of extremity, Numbness of extremity, Abnormal liver function tests, Altered vision, Blurred vision, Color blindness, Rash, Itching, Loss of appetite, Stomach upset, Vomiting

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Expert advice for MARCONEX

  • Do not take isoniazid, if you have severe liver problems or if you have taken isoniazid in the past and it caused liver problems, fever, chills, joint pain, or severe allergic reaction.
  • Contact your doctor immediately, if you experience symptoms such unusual tiredness (fatigue), weakness, feeling of discomfort (malaise), loss of appetite (anorexia), urge to vomit (nausea) or vomiting while taking isoniazid. It indicates that you are progressing towards liver damage.
  • Do consult your doctor before taking isoniazid if you are aged above 35 years. The frequency of isoniazid related inflammation of liver (hepatitis) is higher in individuals older than 35 years of age. The doctor may advice measurement of blood levels of enzyme transferases before starting treatment with isoniazid.
  • Avoid drinking alcohol. It may increase your risk of liver damage while you are taking isoniazid.
  • Do consult your doctor before taking isoniazid, if you are pregnant or planning to become pregnant or are breastfeeding.
  • Isoniazid interacts with many drugs. Please inform your doctor about all the medication you are currently taking to avoid interactions that may reduce effectiveness of any treatment or aggravate side effects.
  • Do not stop taking isoniazid without consulting your doctor.
  • If you forget to take a dose of Isoniazid, take it as soon as you remember. Do not double the dose to make up for the missed dose.

Frequently asked questions for MARCONEX

Isoniazid

Q.Is isoniazid an antibiotic?
Isoniazid is an antibiotic used in the prevention and treatment of tuberculosis or TB (a serious infection caused by bacteria that affects the lungs and in certain cases other parts of the body)

Q.Is isoniazid chemotherapy/chemotherapy drug?
Isoniazid is a primary antibiotic used for treatment of tuberculosis. Do not confuse it with chemotherapy or chemo drugs used for the treatment of cancer

Q.Is isoniazid bacteriostatic or bactericidal?
Isoniazid is a bacteriostatic antibiotic. It stops or suppresses growth of tuberculosis causing bacteria by interfering with the formation of protective outer covering (cell wall) which is essential for their growth

Q.Is isoniazid safe?
Yes. Isoniazid is safe if used at prescribed doses for the prescribed duration as advised by your doctor

Q.Is isoniazid a MAOI?
Isoniazid has very weak inhibitory activity on enzymes monoamine oxidases (MAO); however it is not used as a monoamine oxidase inhibitor (MAOI)

Q.Is isoniazid a sulfa drug?
No. The chemical structure and mechanism of action of isoniazid is different from sulfa drugs

Q.Is isoniazid an inducer or inhibitor?
Isoniazid is an inhibitor (decreases activity) of an important liver enzyme system that is responsible for the final processing and elimination of several drugs from the body

Q.Can I take isoniazid with ibuprofen/Benadryl/Nyquil/Aleve/Mucinex/amoxicillin?
There no known serious drug interactions of isoniazid with ibuprofen, paracetamol (trade name: Tylenol), naproxen (trade name: Aleve), amoxicillin or any active drug present in Nyquil or Mucinex. Please inform your doctor about all the medication you are currently taking to avoid interactions that may reduce effectiveness of any treatment or aggravate side effects

Q.Does isoniazid cause weight loss/weight gain/hair loss/diarrhea/affect menstruation?
Changes in body weight (gain/loss), hair loss, diarrhea or changes in menstruation are not among the known side effects of isoniazid. You may experience few of these side effects while on multi drug (including isoniazid) treatment for tuberculosis

Q.Does isoniazid cause acne/make you tired/cause constipation?
You may experience unusual tiredness, constipation or acne while on treatment with isoniazid. Please inform your doctor about all the medication you are currently taking to avoid interactions that may reduce effectiveness of any treatment or aggravate side effects

Q.Does isoniazid affect birth control?
Isoniazid has no known interaction with commonly used oral contraceptives (birth control pills). However, multidrug treatment for tuberculosis contains active drug rifampin that decreases the effectiveness of oral contraceptives and hampers birth control.

Ethambutol

Q.Does ethambutol cause blindness?
Optic neuritis (inflammation of nerve fibers that transmit visual information from your eye to the brain) is one of the side effects of ethambutol which causes several forms of eye defect. Although these conditions are reversible upon discontinuation of the drug, rare cases of irreversible blindness have also been reported. Please contact your doctor immediately if you notice any of these symptoms: decreased clearness of vision, loss of vision, disturbed vision due to blind spots, color blindness, visual field defect and eye pain

Q.Does ethambutol induce hyperuricemia/how does ethambutol induce hyperuricemia?
Yes. Increase in blood levels of uric acid is a side effect of ethambutol. It increases the retention of uric acid in the body by decreasing the excretion of urates (uric acid) by the kidneys

Q.How does ethambutol work in the body?
Ethambutol is an antibiotic effective against tuberculosis causing bacteria. It suppresses the growth of the bacteria by interfering with the formation of the outer protective covering (cell wall) of the bacteria, thereby weakening the bacteria

Q.What is ethambutol toxicity/How does ethambutol cause optic neuritis/how does ethambutol affect vision?
Ethambutol toxicity involves toxic effects on the eyes (optic neuritis/optic neuropathy) which are related to the dose and duration of ethambutol treatment. It causes optic neuritis (inflammation of nerve fibers in the eye) by interfering with important cellular activities (mitochondrial toxicity) in the nerve cells and inducing nerve damage (neuropathy) thereby affecting the transmission of visual information from the eye to brain. The symptoms of ethambutol induced optic neuritis include: decreased clearness of vision, loss of vision, disturbed vision due to blind spots, color blindness, visual field defect and eye pain

Q.What does ethambutol treat?
Ethambutol is an antibiotic effective against tuberculosis causing bacteria. It is used in the prevention, treatment and second time treatment of tuberculosis (a serious infection caused by bacteria that affects the lungs and in certain cases other parts of the body)

Q.Is ethambutol bacteriostatic or bactericidal?
Ethambutol is both a bacteriostatic and a bactericidal antibiotic. It suppresses the growth of bacteria (bacteriostatic) by interfering with the formation of the outer protective covering (cell wall) of the bacteria, thereby weakening it and causing cell death in certain cases (bactericidal)

Q.Is ethambutol hepatotoxic?
Liver toxicities are among the known side effects of ethambutol. Inflammation of liver (hepatitis), abnormal liver function causing yellowing of skin and eyes (jaundice), abnormal liver function tests (blood tests to assess health of liver) and very rarely liver failure have been noted in patients receiving multi drug (including ethambutol) treatment for tuberculosis. Please contact your doctor before taking ethambutol if you have any liver problems

Q.Is ethambutol toxicity reversible?
In most cases ethambutol toxicities are related to dose (depends upon the quantity of ethambutol you take) and duration of treatment and are reversible upon discontinuation. However, serious irreversible damage to eye and liver has been reported in rare cases

Q.Is ethambutol chemotherapy?
Ethambutol is an antibiotic used in the treatment of tuberculosis. Do not confuse it with chemotherapy or chemo drugs used for the treatment of cancer

Q.Ethambutol is effective against?
Ethambutol is effective against most tuberculosis causing bacteria belonging to Mycobacterium family (M. tuberculosis, M. avium complex, M. kansasii, M. marinum).

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Content on this page was last updated on 19 August, 2014, by Dr. Varun Gupta (MD Pharmacology)