How does metronidazole work?
Metronidazole destroys bacteria and parasites by interfering with their DNA, stopping their growth and spread. This helps clear infections effectively.
What is metronidazole used to treat?
Metronidazole is commonly prescribed for:
- Bacterial infections (e.g., bacterial vaginosis, gum infections, dental abscesses)
- Stomach infections (e.g., Helicobacter pylori, diverticulitis)
- Skin infections (e.g., infected ulcers, rosacea treatment in gel form)
- Protozoal infections (e.g., giardiasis, trichomoniasis)
Who can take metronidazole?
Most adults and children can take metronidazole if prescribed by a doctor. It is widely used for bacterial and parasitic infections.
Who might not be able to take metronidazole?
Metronidazole may not be suitable if you:
- Have liver disease
- Have a history of seizures or nerve disorders
- Are allergic to metronidazole or similar antibiotics
Can I take metronidazole if I’m pregnant or breastfeeding?
Metronidazole isn’t usually recommended in early pregnancy unless essential. If you are pregnant or breastfeeding, speak to your doctor before taking it.
What if I miss a dose?
If you forget a dose, take it as soon as you remember. If it’s nearly time for your next dose, skip the missed one—do not take two doses at once.
How effective is metronidazole?
Metronidazole is highly effective against bacterial and parasitic infections when taken as prescribed. Most people notice improvement within a few days.
What should I do if I take too much?
Taking too much metronidazole may cause nausea, vomiting, or dizziness. If you take more than your prescribed dose, seek medical advice immediately.
What dose of metronidazole is usually taken?
Doses depend on the condition being treated:
- Bacterial infections: 400mg to 500mg twice or three times daily
- Protozoal infections: Usually 2g as a single dose or divided over a few days
- Skin conditions (gel or cream): Applied once or twice daily
Always follow your doctor’s instructions for the correct dosage.
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What are the side effects of metronidazole?
Common side effects include:
More serious side effects, such as nerve problems (tingling or numbness), seizures, or severe allergic reactions, require urgent medical attention.
How should I take metronidazole?
Metronidazole is available as tablets, liquid, creams, gels, and injections. Tablets should be swallowed with water and food to reduce stomach upset.
When should metronidazole be taken?
Metronidazole is usually taken two to three times daily at evenly spaced times. It’s important to finish the full course, even if you feel better.
What are the brand names for metronidazole?
Metronidazole is available under brand names such as:
- Flagyl
- Metrogel (for rosacea and skin infections)
Important note: Avoid alcohol
Drinking alcohol while taking metronidazole can cause severe nausea, vomiting, and headaches. Avoid alcohol for at least 48 hours after finishing treatment.
Final thoughts
Metronidazole is an effective antibiotic for bacterial and parasitic infections. To get the best results, take it exactly as prescribed and complete the full course. If you have concerns, speak to your doctor or pharmacist.
