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  1. Home
  2. Medicine

  3. Flagyl IV 500 mg Injection 100 ml

Prescription drug
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Written By Bayyarapu Mahesh Kumar , M Pharmacy
Reviewed By Santoshini Reddy G , M Pharmacy

Composition :

METRONIDAZOLE-500MG

Manufacturer/Marketer :

Abbott India Ltd

Consume Type :

PARENTERAL

Return Policy :

Not Returnable

Expires on or after :

NPPA :

Regulated

Therapeutic Class

ANTIBIOTICS

Country of origin

India

Manufacturer/Marketer address

401, LSC, C-Block, Mohan Place Saraswati Vihar Delhi DL 110034 In
Other Info - FLA0030

Author Details

Bayyarapu Mahesh KumarDoctor badge

Written By

Bayyarapu Mahesh Kumar

M Pharmacy

Santoshini Reddy GDoctor badge

Reviewed By

Santoshini Reddy G

M Pharmacy

Last Updated

Jul 8, 2025 | 9:46 AM IST

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Disclaimer

While we strive to provide complete, accurate, and expert-reviewed content on our 'Platform', we make no warranties or representations and disclaim all responsibility and liability for the completeness, accuracy, or reliability of the aforementioned content. The content on our platform is for informative purposes only, and may not cover all clinical/non-clinical aspects. Reliance on any information and subsequent action or inaction is solely at the user's risk, and we do not assume any responsibility for the same. The content on the Platform should not be considered or used as a substitute for professional and qualified medical advice. Please consult your doctor for any query pertaining to medicines, tests and/or diseases, as we support, and do not replace the doctor-patient relationship.
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Alcohol

Unsafe

You are recommended not to consume alcohol along with Flagyl IV 500 mg Injection to avoid unpleasant side effects such as stomach pain, nausea, vomiting, flushing, and headache.

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Pregnancy

Caution

Please consult your doctor. Flagyl IV 500 mg Injection should be used in pregnant women only if clinically needed, and the benefits outweigh the risks.

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Breast Feeding

Caution

Consult your doctor if you are a nursing mother. Your doctor will weigh the benefits and potential risks before prescribing Flagyl IV 500 mg Injection .

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Driving

Caution

Flagyl IV 500 mg Injection may cause dizziness and drowsiness; thus, avoid operating machinery or driving vehicles unless you are alert.

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Liver

Caution

Flagyl IV 500 mg Injection to be taken with caution, especially if you have a history of liver diseases/conditions. Your doctor may adjust your dose depending upon your liver condition.

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Kidney

Caution

Flagyl IV 500 mg Injection to be taken with extreme caution, especially if you have a history of kidney diseases/conditions. Your doctor may adjust your dose depending upon your kidney condition.

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Children

Consult your doctor

Limited information about the use of Flagyl IV 500 mg Injection in paediatric patients. Please seek medical advice. Your doctor will weigh the benefits and risks before prescribing this medicine to your child.

Product Substitutes

Reference

  1. https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=d46870f5-e2b1-46bd-8413-4a0a8bcf3175&type=display
  2. https://www.medicines.org.uk/emc/files/pil.13293.pdf
  3. https://www.medicines.org.uk/emc/product/1842/smpc#gref
  4. https://www.nhs.uk/medicines/metronidazole/about-metronidazole/
  5. https://www.drugs.com/drug-interactions/metronidazole-index.html?filter=3

About Flagyl IV 500 mg Injection

Flagyl IV 500 mg Injection belongs to a group of medicines known as anti-bacterial agents used to treat severe bacterial infections of the bone, skin and skin structure, blood, joint, abdomen, central nervous system, respiratory, gynaecological infections, meningitis (infection of the membranes that surround the brain and spinal cord), and endocarditis (infection of the heart lining and valves). 

Flagyl IV 500 mg Injection contains Metronidazole, which suppresses protein synthesis by interacting with DNA and causes helical DNA structure loss and strand breakage. As a result, it induces cell death in susceptible organisms. Thereby Flagyl IV 500 mg Injection treats bacterial infections.

Flagyl IV 500 mg Injection will be administered by a healthcare professional; do not self-administer. Some common side effects of Flagyl IV 500 mg Injection are nausea, vomiting, diarrhoea, constipation, and injection site reaction. These side effects are temporary and may get resolved after some time. However, if any of the side effects persist or worsen, contact the doctor.

Let your doctor know if you are allergic to metronidazole. Consult your doctor if you are pregnant, planning to get pregnant, or if you are breastfeeding. Do not operate heavy machinery or drive after taking Flagyl IV 500 mg Injection as it may cause dizziness and drowsiness. Avoid consumption of alcohol while on treatment with Flagyl IV 500 mg Injection as it may cause unpleasant side effects.

Uses of Flagyl IV 500 mg Injection

Bacterial infections

Medicinal Benefits Mweb

Medicinal Benefits

Flagyl IV 500 mg Injection belongs to a group of medicines known as anti-bacterial agents used to treat severe bacterial infections of the bone, skin and skin structure, blood, joint, abdomen, central nervous system, gynecologic, respiratory infections, meningitis (infection of the membranes that surround the brain and spinal cord), and endocarditis (infection of the heart lining and valves). Flagyl IV 500 mg Injection contains Metronidazole, which suppresses protein synthesis by interacting with DNA and causes helical DNA structure loss and strand breakage. As a result, it induces cell death in susceptible organisms. Thereby Flagyl IV 500 mg Injection treats bacterial infections.

Directions for Use

Flagyl IV 500 mg Injection will be administered by a qualified healthcare professional. Kindly do not self-administer.

Side Effects of Flagyl IV 500 mg Injection

  • Nausea
  • Vomiting
  • Diarrhoea
  • Constipation
  • Injection site reactions

Drug Warnings

Do not take Flagyl IV 500 mg Injection if you are allergic to any of the components. Consult your doctor if you are pregnant, plan to get pregnant or if you are breastfeeding. Do not operate heavy machinery or drive after taking Flagyl IV 500 mg Injection as it may cause dizziness and drowsiness. Inform your doctor if you have bone marrow depression/low blood count, kidney impairment, CNS disorder, liver or heart problems, peripheral neuropathy, epilepsy, Crohn's disease (a condition in which the body attacks the lining of the digestive tract), yeast infection, oedema (swelling), or blood disorders.

Drug-Drug Interactions

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MetronidazoleAmprenavir
Critical
MetronidazoleEthanol
Critical

Drug-Drug Interactions

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MetronidazoleAmprenavir
Critical
How does the drug interact with Flagyl IV 500 mg Injection 100 ml:
Co-administration of Amprenavir with Flagyl IV 500 mg Injection 100 ml can increase the risk or severity of side effects.

How to manage the interaction:
Taking Flagyl IV 500 mg Injection 100 ml with Amprenavir is generally avoided as it can result in an interaction, it can be taken if your doctor has advised it. However, if you experience throbbing in the head and neck, throbbing headache, difficulty breathing, nausea, vomiting, sweating, thirst, chest pain, rapid heartbeat, palpitation, low blood pressure, dizziness, lightheadedness, blurred vision, and confusion, contact a doctor immediately. Do not discontinue any medications without consulting a doctor.
MetronidazoleEthanol
Critical
How does the drug interact with Flagyl IV 500 mg Injection 100 ml:
Drinking alcohol while taking Flagyl IV 500 mg Injection 100 ml can increase the risk or severity of side effects.

How to manage the interaction:
Taking Flagyl IV 500 mg Injection 100 ml with Ethanol is avoided as it can result in an interaction, it can be taken if your doctor has advised it. However, if you experience flushing, throbbing in head and neck, throbbing headache, difficulty breathing, nausea, vomiting, sweating, thirst, chest pain, rapid heartbeat, palpitation, low blood pressure, dizziness, lightheadedness, blurred vision, and confusion, contact a doctor immediately. Do not discontinue any medications without consulting a doctor.
MetronidazoleDisulfiram
Critical
How does the drug interact with Flagyl IV 500 mg Injection 100 ml:
Coadministration of Disulfiram with Flagyl IV 500 mg Injection 100 ml can increase the risk of side effects.

How to manage the interaction:
Taking Flagyl IV 500 mg Injection 100 ml and Disulfiram together is generally avoided as it can lead to an interaction, it can be taken if advised by your doctor. However, if you experience sudden dizziness, confusion, weakness, shortness of breath, or palpitations, contact your doctor. Do not discontinue any medications without consulting a doctor.
MetronidazoleWarfarin
Severe
How does the drug interact with Flagyl IV 500 mg Injection 100 ml:
Coadministration of Flagyl IV 500 mg Injection 100 ml with warfarin can increase the risk of bleeding.

How to manage the interaction:
There is a possible interaction between Flagyl IV 500 mg Injection 100 ml and warfarin, but they can be taken together if a doctor has prescribed them. Consult a doctor if experience unusual bleeding or bruising, vomiting, blood in your urine or stools, headache, dizziness, or weakness. Do not stop using any medications without talking to a doctor.
MetronidazoleBusulfan
Severe
How does the drug interact with Flagyl IV 500 mg Injection 100 ml:
Coadministration of Busulfan and Flagyl IV 500 mg Injection 100 ml may increase the risk of side effects.

How to manage the interaction:
Taking Flagyl IV 500 mg Injection 100 ml and Busulfan together can result in an interaction, it can be taken if your doctor has advised it. However, if you experience unusual bruising or bleeding, fever, diarrhea, sore throat, muscle aches, shortness of breath, or burning during urination, contact a doctor immediately. Do not discontinue the medication without a doctor's advice.
MetronidazoleMebendazole
Severe
How does the drug interact with Flagyl IV 500 mg Injection 100 ml:
Coadministration of Flagyl IV 500 mg Injection 100 ml with mebendazole may increase the risk or severity of side effects.

How to manage the interaction:
Although there is a possible interaction between Flagyl IV 500 mg Injection 100 ml and mebendazole, they can be taken together if your doctor has prescribed them. However, if you experience any unusual symptoms like fever, body ache, painful red rash, cough, peeling of the skin, or Drooling, contact a doctor immediately. Do not stop using any medications without talking to a doctor.
MetronidazoleFluconazole
Moderate
How does the drug interact with Flagyl IV 500 mg Injection 100 ml:
Co-administration of Fluconazole together with Flagyl IV 500 mg Injection 100 ml can increase the risk of an irregular heart rhythm.

How to manage the interaction:
-Taking Flagyl IV 500 mg Injection 100 ml with Fluconazole together can possibly result in an interaction, but it can be taken if a doctor has advised it. However, consult a doctor immediately if you experience any symptoms such as dizziness, lightheadedness, fainting, shortness of breath, or heart palpitations. Do not discontinue any medications without consulting a doctor.

Drug-Food Interactions

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No Drug - Food interactions found in our database. Some may be unknown. Consult your doctor for what to avoid during medication.

Drug-Food Interactions

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Drug-Diseases Interactions

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No Drug - Disease interactions found in our database. Some may be unknown. Consult your doctor for what to avoid during medication.

Drug-Diseases Interactions

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Drug-Drug Interactions Checker List

  • AMPRENAVIR
  • ANISINDIONE
  • DICUMAROL
  • WARFARIN
  • BCG VACCINE
  • CHOLERA VACCINE LIVE
  • TYPHOID VACCINE LIVE
  • BUSULFAN
  • DISULFIRAM

Habit Forming

No

Diet & Lifestyle Advise

  • It would be best to take probiotics after taking the full course of Flagyl IV 500 mg Injection to restore healthy bacteria in the intestine that may have been killed. Taking probiotics after antibiotic treatment can reduce the risk of antibiotic-associated diarrhoea. Certain fermented foods like yoghurt, cheese, sauerkraut and kimchi can help restore the intestine's good bacteria.
  • Include more fibre-enriched food in your diet, as it can be easily digested by gut bacteria which helps stimulate their growth. Whole grains like whole-grain bread, and brown rice, should be included in the diet.
  • Avoid intake of alcoholic beverages with Flagyl IV 500 mg Injection as it can make you dehydrated and affect your sleep. This can make it harder for your body to aid Flagyl IV 500 mg Injection in fighting off infections.

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