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MetroLotion (Generic Metronidazole Topical)

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Why is this medication prescribed?

MetroLotion is a brand name for a medication that contains the active ingredient metronidazole. Metronidazole is an antibiotic and antiprotozoal medication used to treat a variety of bacterial and parasitic infections. Here are some common uses of MetroLotion:

  • Rosacea: MetroLotion is often prescribed topically (applied to the skin) for the treatment of rosacea, a chronic skin condition characterized by redness, visible blood vessels, and sometimes acne-like bumps on the face.
  • Bacterial Vaginosis: Metronidazole, in various forms such as oral tablets, vaginal gel, or cream, can be prescribed to treat bacterial vaginosis, a common vaginal infection caused by an imbalance of bacteria in the vagina.
  • Protozoal Infections: Metronidazole can also be used to treat certain protozoal infections such as trichomoniasis, an infection caused by a parasite that affects the genital and urinary tracts.
  • Anaerobic Bacterial Infections: In some cases, metronidazole may be used to treat infections caused by anaerobic bacteria, particularly in cases of intra-abdominal infections and certain dental infections.

How should this medicine be used?

The way MetroLotion should be used depends on the specific condition being treated and the instructions provided by your healthcare provider. However, when using MetroLotion topically for rosacea, the typical instructions are as follows:

  • Clean the affected area: Wash your face gently with a mild cleanser and pat it dry before applying the medication.
  • Apply a thin layer: Use a small amount of MetroLotion and apply it evenly to the affected areas of your face.
  • Frequency: Typically, it is applied once or twice daily, as directed by your healthcare provider.
  • Follow your doctor’s instructions: It’s important to follow your healthcare provider’s recommendations regarding the duration of treatment and any other specific instructions they provide.

It’s crucial to use MetroLotion exactly as prescribed and complete the full course of treatment, even if your symptoms improve before you finish the medication. If you have any questions or concerns about how to use MetroLotion, it’s essential to consult your healthcare provider or pharmacist for guidance, as they can provide you with personalized instructions based on your condition. Additionally, inform your healthcare provider about any allergies or potential interactions with other medications you may be taking.

Other uses for this medicine

In addition to its primary uses, MetroLotion may also be prescribed for other conditions at the discretion of a healthcare provider. Some of these off-label uses may include the treatment of certain skin infections or inflammatory skin conditions. However, only use MetroLotion as directed by your healthcare provider.

What special precautions should I follow?

As for special precautions when using MetroLotion (metronidazole), here are some important points to keep in mind:

  • Allergies: Inform your healthcare provider if you are allergic to metronidazole or any other medications. Allergic reactions can be severe and may include rash, itching, swelling, severe dizziness, or difficulty breathing.
  • Pregnancy and Breastfeeding: Discuss with your healthcare provider if you are pregnant or planning to become pregnant. The use of metronidazole during pregnancy should be carefully considered, and your doctor will weigh the potential benefits against the risks. If you are breastfeeding, consult your healthcare provider as metronidazole can pass into breast milk.
  • Alcohol Interaction: Avoid consuming alcohol while taking metronidazole and for at least 48 hours after completing the medication course. Combining alcohol with metronidazole can cause severe nausea, vomiting, and flushing.
  • Neurological Effects: Rarely, metronidazole can cause neurological side effects, such as dizziness, unsteadiness, and numbness or tingling in the extremities. If you experience these symptoms, discontinue the medication and seek medical attention.
  • Blood Disorders: Metronidazole may rarely affect blood cell counts. Your healthcare provider may monitor your blood counts during treatment.
  • Interactions with Other Medications: Inform your healthcare provider about all the medications, supplements, and herbal products you are taking, as metronidazole can interact with other drugs.
  • Caution with Certain Medical Conditions: Be cautious when using metronidazole if you have a history of liver disease, nerve disorders, or blood disorders. Your healthcare provider will consider these factors when prescribing the medication.

It’s essential to follow your healthcare provider’s guidance and take MetroLotion exactly as prescribed. If you experience any unusual or severe side effects while taking the medication, contact your healthcare provider promptly. Do not hesitate to ask questions or seek clarification regarding its use and any potential risks associated with it.

What special dietary instructions should I follow?

There are no specific dietary restrictions associated with MetroLotion. You can take it with or without food, as directed by your healthcare provider. However, if you experience stomach upset or nausea while taking MetroLotion, you may find it helpful to take the medication with food or a glass of milk to reduce these side effects.

What should I do if I forget a dose?

If you forget to take a dose of MetroLotion, take it as soon as you remember, unless it’s close to the time for your next scheduled dose. In that case, skip the missed dose and continue with your regular dosing schedule. Do not double up on doses to make up for a missed one, as this can increase the risk of side effects and will not improve the medication’s effectiveness.

What side effects can this medication cause?

MetroLotion, which contains metronidazole as its active ingredient, can cause a range of side effects. Not everyone will experience these side effects, and some people may experience them to a greater or lesser degree than others. Common side effects of MetroLotion may include:

  • Skin Irritation: Since MetroLotion is applied topically, some individuals may experience skin irritation, redness, or a burning sensation at the application site. This is usually mild and temporary.
  • Dry Skin: MetroLotion can occasionally lead to dryness or peeling of the skin, especially when first starting treatment. Using a moisturizer can help alleviate this symptom.
  • Metallic Taste: Some people may experience a metallic or bitter taste in their mouth, which is a less common side effect.
  • Nausea: Nausea is a possible side effect, although it’s more commonly associated with oral metronidazole rather than the topical form.
  • Headache: Headaches can occur in some individuals using metronidazole, but they are generally mild.
  • Allergic Reactions: Allergic reactions to metronidazole are rare but can include symptoms such as rash, itching, swelling of the face, lips, or tongue, severe dizziness, or difficulty breathing. Seek medical attention immediately if you experience any signs of an allergic reaction.
  • Neurological Effects: Although uncommon, metronidazole may rarely cause neurological side effects, including dizziness, unsteadiness, numbness or tingling in the extremities, or confusion. If you experience these symptoms, discontinue the medication and consult your healthcare provider.
  • Blood Disorders: In rare cases, metronidazole can affect blood cell counts, leading to conditions such as leukopenia (low white blood cell count) or thrombocytopenia (low platelet count). Your healthcare provider may monitor your blood counts during treatment.
  • Liver Function: Some individuals may experience changes in liver function tests while taking metronidazole. This is typically reversible upon discontinuation of the medication.

It’s important to note that these side effects are not experienced by everyone, and many people tolerate MetroLotion without any significant issues. If you do experience side effects and they are bothersome or severe, it’s essential to contact your healthcare provider for guidance. Additionally, inform your healthcare provider of any pre-existing medical conditions or other medications you may be taking, as they can affect your risk of experiencing certain side effects or drug interactions.

What should I know about storage and disposal of this medication?

Regarding storage and disposal, here are some guidelines:


  • Store at Room Temperature: MetroLotion should be stored at room temperature, away from excessive heat and moisture. Do not freeze it.
  • Keep Out of Reach of Children: Ensure that the medication is kept out of the reach of children and pets.
  • Protect from Light: Some medications are sensitive to light. Check the packaging for any specific instructions regarding exposure to light.
  • Do Not Share Medication: MetroLotion is prescribed for your specific condition. Do not share it with others, even if they have similar symptoms.


  • Follow Local Regulations: When it comes time to dispose of MetroLotion, follow your local regulations for the disposal of medications. Many communities have specific instructions for disposing of unused or expired medications, including drop-off locations or collection events.
  • Do Not Flush: Do not flush MetroLotion down the toilet unless specifically instructed to do so by the medication’s label or by your healthcare provider. Flushing medications can potentially harm the environment.

In case of emergency or suspicion of an overdose, take the following steps:

In the event of an overdose or if you suspect someone has taken an excessive amount of MetroLotion, contact emergency services or seek immediate medical attention. Overdose symptoms may include:

  • Severe nausea and vomiting
  • Loss of coordination
  • Numbness or tingling in the extremities
  • Seizures
  • Loss of consciousness

What other information should I know

  • Complete the Full Course: It’s essential to complete the full course of MetroLotion as prescribed by your healthcare provider, even if your symptoms improve before you finish the medication. Stopping the medication prematurely can lead to the return of the infection.
  • Follow Prescribing Instructions: Take MetroLotion exactly as directed by your healthcare provider. Do not change the dose or frequency without consulting them.
  • Inform Your Healthcare Provider: Inform your healthcare provider of any allergies, medical conditions, or other medications you are taking, as this information can be crucial in ensuring your safety and the effectiveness of the treatment.
  • Avoid Alcohol: As mentioned earlier, avoid alcohol consumption while taking MetroLotion and for at least 48 hours after completing the medication course to prevent potential interactions and side effects.
  • Follow-Up: Attend any follow-up appointments with your healthcare provider as scheduled. They may want to monitor your progress and ensure that the infection has been successfully treated.

Always use MetroLotion according to your healthcare provider’s recommendations and seek medical attention if you experience any severe side effects or have concerns about its use. This information is intended as a general guideline, and specific instructions may vary based on your individual circumstances and the product labeling.

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