Medically reviewed by Jessica Swirble, PharmD
Last updated on 3/18/2024

Drug Information | Side Effects | Use & Dosage | Request a Prescription

Metronidazole is available in various forms:

• Oral tablets (250 mg, 500 mg)
  
• Oral extended-release tablets (750 mg)
  
• Oral capsules (375 mg)
  
• Oral suspension (500 mg/5 mL)
  
• Topical gel (0.75%, 1%)
  
• Topical cream (0.75%, 1%)
  
  

The typical starting dose of metronidazole can vary depending on the specific infection being treated, the patient's age, weight, medical history, and other individual factors. It is crucial to follow your healthcare provider's instructions regarding dosage and administration carefully.

For the treatment of bacterial infections, the typical starting doses may be:

• For mild to moderate infections: 500 mg taken orally every 12 hours for 7 to 10 days.
  
• For severe infections or certain types of infections: 500 mg to 1000 mg taken orally every 6 to 8 hours as directed by your healthcare provider.
  
  

For certain protozoal infections, the typical starting dose may be:

• For amebiasis (intestinal): 500 mg to 750 mg taken orally three times daily for 5 to 10 days.
  
• For trichomoniasis: A single dose of 2 grams taken orally or as directed by your healthcare provider.
  
  

Your healthcare provider will assess your medical history, current medications, and the nature of your infection to determine the most appropriate starting dose and duration of treatment for you.

Metronidazole should be taken exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or make changes to your medication regimen without consulting your provider.

If you have any questions about your dosage, contact your healthcare provider. If you want to talk to a provider right away, book an online doctor appointment on Sesame to discuss your concerns.

If you miss a dose, take it as soon as you remember it. If it's almost time for another dose of metronidazole, skip the missed dose and take your next dose as scheduled. Do not take or apply a double dose of metronidazole.

Do not discontinue or alter your metronidazole dosage without consulting with your healthcare provider. Follow your healthcare provider's instructions regarding dosing and other recommendations for taking metronidazole.

Store metronidazole as directed by your healthcare provider or pharmacist. Proper storage is essential to maintain the medication's effectiveness. Metronidazole should be stored at room temperature, away from excessive heat, light, and moisture.

Keep the medication out of the reach of children and ensure that the container is tightly closed.