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Metronidazole 400mg Tablets
Medically Reviewed by – Alfie Thornton, PharmD
Last Updated on 8 July 2026

Metronidazole 400mg Tablets

$0.33 – $0.40
Metronidazole 400mg  is an antibacterial medication used to treat infections of the vagina, stomach, skin, brain, blood, bones, joints, lung, heart, and respiratory tract. It belongs to a class of antibiotics known as nitroimidazoles. Metronidazole works by stopping the growth of bacteria and protozoa in your body. This medicine may also be used to treat other conditions as determined by your doctor.
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2% – 40g200mg-60ml200mg400mg
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$36
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$36
Metronidazole 400mg Tablets CouponCoupon DescriptionCoupon Expiry Date
SUNNY28Summer Spectacular Sale2026-07-31
Categories: Anti BioticsTag: Pills

What is Metronidazole 400mg used for?

Metronidazole 400mg  is an antibacterial medication used to treat infections of the vagina, stomach, skin, brain, blood, bones, joints, lung, heart, and respiratory tract. It belongs to a class of antibiotics known as nitroimidazoles. Metronidazole works by stopping the growth of bacteria and protozoa in your body. This medicine may also be used to treat other conditions as determined by your doctor.

What are the side effects of Metronidazole 400mg?

Like other medicines, Metronidazole 400mg can cause some side effects. If they do occur, the side effects of Metronidazole are most likely to be minor and temporary. However, some may be serious and may require the individual to inform the doctor or visit the nearest hospital immediately. It is pertinent to note that side effects of Metronidazole cannot be anticipated. If any side effects of Metronidazole develop or change in intensity, the doctor should be informed as soon as possible. Metronidazole can cause side effects such as loss of appetite, nausea, vomiting, headache, abdominal cramps, constipation, unpleasant metallic taste, dry mouth, and diarrhea. This is not a complete list of all side effects. Do concur with your doctor and follow his directions completely when you are taking Metronidazole.

What is the recommended dosage of Metronidazole?

The dosage of Metronidazole prescribed to each patient will vary. Always follow your physician’s instructions and/or the directions on the prescription drug label. Metronidazole can be taken with or without food.

What if you miss a dose of Metronidazole?

If your physician has instructed or directed you to take Metronidazole medication in a regular schedule and you have missed a dose of this medicine, take it as soon as you remember. However, if it is almost time for your next dose, then skip the missed dose and go back to your regular dosing schedule. Do not double the doses unless otherwise directed.

What if you overdose on Metronidazole?

Any medication taken in excess can have serious consequences. If you suspect an overdose of Metronidazole, seek medical attention immediately.

What other drugs could interact with Metronidazole 400mg?

It may be noted that drugs other than those listed above may also interact with Metronidazole. Usually drug interactions occur when it is taken with another drug or with food. Before you take a medication for a particular ailment, you should inform the health expert about intake of any other medications including non-prescription medications, over-the-counter medicines that may increase the effect of Metronidazole, and dietary supplements like vitamins, minerals and herbal, so that the doctor can warn you of any possible drug interactions. Metronidazole can interact with seizure medications and blood thinners. Do let your doctor know if you smoke, consume alcohol or caffeinated drinks, or use illegal drugs as these may interfere with the action of your medication. Make sure to inform your doctor of any medical conditions you may have, or any family history of medical problems. Do not start or stop using any medicine without consulting your doctor.

What is the best alternative to Metronidazole 400mg?

For the treatment of trichomoniasis, Metronidazole 400mg alternatives include furazolidone, clotrimazole, nonoxynol-9 or paromomycin. These Metronidazole Alternatives for bacterial vaginosis are well clindamycin topically or systemically. For some of the giardiasis, alternative options for Metronidazole over the counter include paromomycin, nitazoxanide or the anthelminthic benzimidazoles.

What Foods Should You Avoid While Taking Metronidazole 400mg?

While taking Metronidazole 400mg, avoid alcohol and foods containing propylene glycol. Mixing Metronidazole 400mg dosage with alcohol can cause nausea, vomiting, headache, and flushing. Fermented foods like sauerkraut, soy sauce, and some cheeses may also interact with the medication. Always check food labels for hidden alcohol or glycol content. If unsure, ask a doctor before eating certain foods. Proper diet helps avoid unwanted side effects and ensures Metronidazole 400mg works effectively.

Can You Have Sex While Taking Metronidazole 400mg?

It’s best to avoid sex while using Metronidazole 400mg dosage for bacterial vaginosis (BV) or trichomoniasis. The medication needs time to clear the infection, and having sex may slow recovery or spread the infection to your partner. If treating trichomoniasis, both partners should take the medicine to prevent reinfection. Using condoms may lower the risk, but doctors recommend waiting until you finish the full Metronidazole 400mg dosage and symptoms disappear.

How Long Does Metronidazole 400mg Stay in Your System?

After taking Metronidazole 400mg, the drug stays in your system for about 24 to 48 hours. However, it may take up to 3 days to fully clear from the body. Factors like metabolism, kidney function, and dosage affect elimination time. Even after stopping, traces of Metronidazole 400mg dosage might remain, so avoid alcohol for at least 72 hours to prevent side effects. If you experience nausea or dizziness, drink water and rest until the medication is cleared.

Can I Take Metronidazole 400mg Dosage for Trichomoniasis?

Yes, Metronidazole 400mg dosage for trichomoniasis is a common treatment. Doctors usually prescribe a single 2g dose or 400mg twice daily for 7 days. It’s important to complete the full course to clear the infection. If symptoms persist, consult a doctor for further evaluation. Avoid alcohol during treatment, as it can cause severe nausea. Partners should also be treated to prevent reinfection. If you miss a dose, take it as soon as you remember, but never double up.

Where can I buy Metronidazole 400mg over the counter?

Curious about purchasing Metronidazole 400mg over the counter? In most countries, Metronidazole 400mg is a prescription medication, necessitating a doctor's approval and cannot be bought OTC. Yet, at internationaldrugmart.com, we provide a solution. Through our online pharmacy, consult with licensed healthcare professionals who can evaluate your condition and issue a prescription if appropriate.

Can I buy Metronidazole 400mg without a prescription?

Wondering if you can buy Metronidazole 400mg without a prescription? Typically, Metronidazole 400mg requires a doctor's prescription for purchase. However, at internationaldrugmart.com, we offer a streamlined process. Through online consultations with our licensed healthcare professionals, you can obtain a prescription if deemed suitable. Connect with our healthcare team today to initiate your consultation and receive the treatment you need.

Where Can I Buy Metronidazole 400mg Dosage for BV?

You can buy Metronidazole 400mg online or at local pharmacies with a prescription. Some online stores offer Metronidazole 400mg dosage for BV at competitive prices. Always choose a reputable source to ensure you get genuine medicine. InternationalDrugMart.com is the exclusive platform where we provide medicines at the lowest prices, ranging from $0.33 to $0.40.

Note

The health and medical information provided here is intended to supplement and not substitute for the expertise and judgment of your physician, pharmacists or other health care professional. It should not be understood to indicate that the use of Metronidazole is safe, appropriate or effective for you. Always consult your health care professional before using this, or any other, drug.

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