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Metronidazole is a custom-made pharmacy drug classified as an antibiotic. Physicians prescribe it for the treatment of specific parasitic and bacterial infections. In simplest terms, metronidazole stops the growth of parasites and bacteria, allowing the body to then repair itself and end the infection. Metronidazole has been used for various infections of the vagina, joints, skin, stomach, and also respiratory system.


As with many medications, your compounding pharmacist can craft metronidazole into many and various delivery forms for administration. Commonly, metronidazole is administered as a tablet to be taken orally, generally two to three times daily or as ordered by your physician. Metronidazole can be taken with food, water or milk, to help prevent upset stomach symptoms. If your condition seems to be improving, do not stop taking this medicine until you have completed your physician's recommended course. If you are experiencing any trouble while taking metronidazole, see your physician.


Many medications and drugs cause unwanted side effects. Side effects can be unique to the individual depending on their age, health, and chemistry. Be observant and see your physician if any side effects are exacerbating or persisting. Common side effects seen with metronidazole are:

  • Dizziness
  • Loss of Balance
  • Vaginal Itching
  • Vaginal Discharge
  • Xerostomia
  • Metallic Taste
  • Diarrhea
  • Pain in Stomach
  • Sore Tongue
  • Swelling (tongue)
  • Runny or Stuffy Nose
  • Sneezing and/or Cough

Severe Side Effects:

Some patients could experience severe side effects. Severe side effects require an immediate consultation with your physician or prompt medical attention at a healthcare facility. Never delay if you experience anything severe, get medical help right away. Some of the commonly known severe side effects are listed below.

  • Vision Problems
  • Pain Behind Eyes
  • Mood Swings
  • Tremors
  • Muscle Twitching
  • Numbness and/or Tingling (hands or feet)
  • White Patches in Mouth (possibly on lips)
  • Sores in Mouth (possibly on lips)
  • Difficulty Concentrating
  • Seizures
  • Watery or Bloody Diarrhea
  • Slurred Speech
  • Fever, Chills, Muscle Pain, Vomiting and/or Stiffness
  • Burning and/or Pain During Urination

Severe Side Effects: (Extreme Skin Reactions):

  • Fever
  • Sore Throat
  • Swelling (face or tongue)
  • Burning Eyes
  • Pain (skin)
  • Spreading Red Or Purple Skin Rash (possible blistering and peeling)


Metronidazole is a powerful antibiotic and should be used cautiously when prescribed. Never take this drug without your physician's consent.

There are many possible contraindications for this drug. Talk to your physician about all possible contraindications to decide if metronidazole is safe for your use.

Metronidazole may be contraindicated for any of the following conditions, talk to your physician.

  • Peripheral Neuropathy
  • Cockayne Syndrome
  • Seizures
  • Meningitis (not caused by infection)
  • Decreased Neutrophils
  • Low Seizure Threshold
  • Disorders of the Brain
  • Excessive Alcohol Consumption
  • Alcohol Intoxication
  • Prolonged QT Interval (EKG)
  • Severe Liver Disease or Liver Abnormalities

Metronidazole excretes into breast milk. Do not use this drug if you are breastfeeding.

Metronidazole may be contraindicated for pregnancy. Talk to your physician.

  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA